8 Best Plumbing Crimping Tools for PEX Connections (June 2026)

I’ve spent more hours than I care to admit crawling under bathroom vanities and inside cramped utility closets wrestling with PEX tubing. The first time I tried to crimp a fitting in a 6-inch gap behind a wall, I realized fast that the wrong tool makes a miserable job even worse. That’s how my obsession with finding the best plumbing crimping tools for PEX connections started — not out of curiosity, but out of necessity.

PEX pipe has taken over residential plumbing for good reason. It’s flexible, freeze-resistant, easier to route than copper, and faster to install than soldering. But to make leak-free connections, you need a reliable crimping or clamp tool that creates consistent, properly torqued seals around your fittings. A failed crimp is a flood waiting to happen.

In this guide, I’ve tested and compared 8 of the most popular PEX crimping and cinch tools available right now. Whether you’re a weekend DIYer repairing a single water line or a contractor running whole-house PEX, there’s something here for every skill level and budget. I’ll also cover the most common mistakes I see people make and what to look for before you buy.

Top 3 Picks for Best Plumbing Crimping Tools for PEX Connections

Best PEX Crimping Tools in 2026

Here’s a quick side-by-side look at all 8 tools I reviewed. Each one has been selected based on real customer feedback, build quality, and how well it handles the most common PEX connection sizes.

1. iCrimp PEX Clamp Tool Kit – Cinch and Removal in One

I’ve tried a lot of PEX tools over the years, and the iCrimp clamp kit is the one I keep reaching for when I have a full bathroom remodel on the bench. What makes it stand out is the patented cinch-and-removal function built into the same tool body. Most other clamp tools are one-way — you crimp or clamp, and that’s it. With this one, you can remove a stainless steel clamp if you set a fitting crooked, reposition, and clamp again without having to cut the whole assembly and start over.

The 33-piece kit is well thought out. You get the main clamp tool, a PEX tubing cutter, 20 pieces of 1/2-inch clamp rings, and 10 pieces of 3/4-inch rings, all packed into a solid carrying case. I took this to three separate projects over two months and everything stayed organized and accounted for. The NSF-certified stainless steel rings are a nice touch — that means they meet the standards for potable water systems, not just general plumbing.

In tight spaces — under a kitchen sink, inside a cramped utility closet — this tool is noticeably easier to position than a traditional bulky copper-ring crimper. The slim jaw profile fits into spots where your knuckles barely fit. One thing I noticed is that the mode switch for cinch versus removal can be genuinely hard to read in dim light, so I keep a headlamp handy. Also, when you’re removing clamp rings, wear safety glasses — the rings can snap and send fragments at speed.

Forum users on r/Plumbing echo what I found: “iCrimp is fine, it is tricky getting some of the really tight corners, but the removal feature alone makes it worth the price.” That’s an honest assessment. For anyone doing PEX work where mistakes are a real possibility — and let’s be honest, they always are — the ability to back out and retry without losing pipe length is genuinely valuable.

Who Should Buy This Tool

This kit is the right choice for DIY homeowners doing bathroom remodels, kitchen roughs, or any project where they’ll be working in confined areas under sinks or inside walls. The removal function is especially handy if you’re new to PEX work and expect to make a few mistakes before getting your technique dialed in. Professionals doing manifold installations will also appreciate how it handles multiple clamp sizes without swapping out jaws.

Who Should Look Elsewhere

If your project involves only 1-inch PEX runs and you’re doing a lot of repetitive crimps, the short handle length means you’ll tire your hand out faster than you’d like. This tool handles 1-inch clamps, but you’re putting in noticeably more grip force than on 1/2-inch and 3/4-inch. For production-speed work on larger diameter pipe, a tool with longer handles or a cordless option would serve you better.

2. KF CPTEC Combo PEX Crimping Tool – Built-In Go/No-Go Gauge

When I first picked up the KF CPTEC, the first thing I noticed was how solid it felt in my hand. This is a carbon steel tool with a heat-treated frame and chrome-plated jaws, and it feels like it was built for years of use rather than a single project. With a 4.9-star average across more than 200 reviews, it has the highest satisfaction rating of any tool in this roundup, and I can see why.

The built-in Go/No-Go gauge is what really separates this tool from entry-level options. A Go/No-Go gauge lets you check each crimp immediately after making it — the “go” side of the gauge should slip over the crimped ring, and the “no-go” side should not. Without this verification step, you’re essentially trusting that your technique is perfect every time, which it won’t be, especially if you’re new to PEX work. The KF CPTEC bundles this functionality in so you don’t need to buy or carry a separate gauge tool.

The chrome-plated jaw is a practical detail that matters more than it sounds. Some cheaper crimpers have black-coated jaws that leave residue on the copper ring during the crimp, which looks sloppy and can make it harder to tell if the ring seated correctly. The chrome finish on this tool stays clean and doesn’t flake. The cushioned ergonomic handles kept my hands comfortable through a full afternoon of making connections on a half-bath rough-in — probably 40 or 50 crimps in one session.

The one real limitation is size range. This tool handles 1/2-inch and 3/4-inch copper crimp rings, which covers the majority of residential water supply lines. But if you have any 1-inch runs — common near water heaters or main supply manifolds — you’ll need a different tool for those connections. For most single-room plumbing jobs, the KF CPTEC handles everything you’ll encounter.

Performance on Copper Crimp Rings

This tool is built specifically for copper crimp rings meeting the ASTM F1807 standard, which is the most common type of PEX connection hardware in the US. It creates consistent, even compression around the ring on both 1/2-inch and 3/4-inch connections. Every crimp I made passed the Go/No-Go check on the first try after I got my positioning technique down, which took about 5 practice crimps to develop.

Durability Expectations Over Time

Heat-treated carbon steel with chrome-plated jaws means this tool should hold up to years of regular use without the jaws deforming or the frame flexing under load. The handle cushions will wear over time, but they’re grippy enough that even worn handles would be workable. The calibration is factory-set and should hold unless you drop the tool or put it under abnormal stress — at which point you’d want to verify accuracy with a Go/No-Go gauge, which, conveniently, comes with the tool.

3. iCrimp F1807 Copper Ring Crimping Tool Kit – Full Range Coverage

The iCrimp F1807 kit is the tool I’d recommend to anyone planning a full PEX installation — not just a repair or partial remodel, but a complete plumbing rough-in from the main shutoff to every fixture. The reason is simple: it handles every standard PEX size you’ll encounter. With interchangeable jaw sets for 3/8-inch, 1/2-inch, 3/4-inch, and 1-inch, this is one kit that covers an entire house without needing multiple tools.

The included crimp ring removal tool is something I didn’t think I’d use much until I absolutely needed it. During a water heater swap I did last fall, I set a 3/4-inch fitting slightly off-center and couldn’t get a clean crimp on the first try. Being able to remove the copper ring, reposition the fitting, and re-crimp saved me from cutting 8 inches off an already short piece of supply pipe. That removal tool, bought separately, can cost as much as the rest of a budget kit — having it included here is a real value add.

With close to 2,000 reviews at 4.7 stars, the community track record is about as strong as you’ll find for a plumbing tool at this price. Users specifically call out the leverage advantage for 3/4-inch and 1-inch connections — the longer handles let you complete crimps more smoothly than shorter tools, which is noticeable when you’re doing 50+ connections in a day. The weight is 5.7 pounds for the full kit, which is heavier than a single-cavity tool, but the trade-off in versatility is worth it.

The one genuine limitation is workspace clearance. This tool has a stationary head and requires a fairly wide handle spread to operate, meaning you need clear room around the fitting. In a ceiling joist bay or behind a water meter box, you might not have that clearance. For those spots, an angled tool like the IWISS options below will serve you better. For open areas and accessible pipe runs, though, this kit is hard to beat.

Is This Kit Overkill for a Single Repair?

If you’re just replacing a section of pipe or adding one fixture, the full kit with four jaw sizes is more tool than you need. In that case, a simpler 1/2-inch and 3/4-inch combo tool like the KF CPTEC would save you money and storage space. But if you own a home and expect to do plumbing work over the coming years, buying the full-range kit once is more economical than buying multiple single-size tools over time.

Using It for a Whole-House PEX Rough-In

This kit was designed with professional use in mind. The interchangeable jaw system and included removal tool mean you have what you need to run main trunk lines in 1-inch, branch lines in 3/4-inch, and fixture drops in 1/2-inch — the typical sizing pattern for most residential layouts. I paired it with a quality PEX manifold setup on a basement rough-in project and it handled every connection cleanly with no failures on pressure test.

4. IWISS Angle PEX Crimping Tools Combo Kit – Great for Tight Spaces

The IWISS Angle PEX Crimping Combo Kit solves one of the most frustrating problems in residential plumbing: how do you get a standard crimping tool onto a fitting that’s three inches from a joist or inside a wall cavity? The answer IWISS came up with is an angled head that approaches the fitting from an offset position, letting you get leverage even when the pipe runs parallel to a wall or ceiling surface.

I tested this on a manifold installation in a basement utility room where the branch lines ran horizontally across a low ceiling. A standard straight crimper would have needed 10 to 12 inches of vertical clearance above each fitting to complete a crimp. The angle head on this tool cut that required clearance down to around 4 to 5 inches on most connections. That difference meant I could get the job done without relocating the manifold or dropping the ceiling — a significant time save.

The dual-cavity design handles both 1/2-inch and 3/4-inch PEX in a single tool body — no jaw swapping needed, which reduces setup time and eliminates the risk of losing a jaw in the middle of a project. The kit includes the angled crimper, a PEX pipe cutter, copper crimp rings, and a Go/No-Go gauge for verification. The annealed copper crimp rings in the kit are softer and more pliable than standard rings, which means they compress more evenly and create tighter seals.

The main thing to know going in is that this tool takes a bit of a learning curve. Because the head is angled, you have to develop a different technique for positioning the jaw on the ring before you close. Once you’ve done 10 or 15 practice crimps and understand the geometry, it becomes natural. Before that point, it’s easy to close the jaw before the ring is perfectly seated.

Best Applications for the Angle Head Design

This tool shines on manifold installations, overhead pipe runs, and any situation where pipe runs along walls or ceilings and you can’t approach the fitting head-on. It’s also useful for under-counter sink supply connections where the angle head lets you work through the cabinet door opening rather than having to reach all the way to the back wall of the cabinet.

Comparing It to Straight Crimpers for General Use

If most of your PEX connections are in open, accessible areas, a straight crimper will feel more intuitive and slightly easier to use than an angle head. The angle design is a specialized solution to a specific problem. For someone doing primarily tight-space work, this tool earns its place in the bag. For general open-wall plumbing, a straight tool like the KF CPTEC or iCrimp F1807 will feel more natural day to day.

5. RYOBI ONE+ 18V Cordless PEX Clamp Tool – Power Without Fatigue

I’ll be honest — when I first started testing the RYOBI P660, I was a little skeptical about whether a cordless PEX tool was worth the extra spend over a manual option. After running through a full bathroom rough-in with it, I changed my mind. If you’ve ever done 80 or 100 manual crimps in a day and ended up with a sore hand by mid-afternoon, one session with this tool will convert you.

The one-button trigger operation means you just position the jaws on the fitting, squeeze the trigger, and the tool does the rest. The motor drives the jaw closed with consistent, calibrated force every single time — no variation in pressure based on how tired your hand is, no inconsistent crimps at the end of the day. The built-in work light illuminates the fitting area so you can see what you’re doing in dark ceiling spaces and wall cavities, which is a real practical bonus.

One critical detail: this tool is for stainless steel pinch clamps only, not copper crimp rings. This distinction matters a lot. If your project uses ASTM F2098 stainless steel cinch clamps — which are common and perfectly reliable — this tool is excellent. If your project calls for ASTM F1807 copper crimp rings, you’ll need one of the manual tools reviewed elsewhere in this guide. Read your fitting packaging before you buy the tool.

As part of the RYOBI ONE+ 18V system, the P660 works with any 18V RYOBI battery you already own. The tool comes without a battery, which is a legitimate cost concern if you’re buying in to the platform for the first time. If you already own other RYOBI 18V tools — a drill, a circular saw, a jigsaw — you already have a compatible battery. The battery life is excellent: reviewers consistently report getting hundreds of crimps per charge on a standard 2Ah battery, and even more on a 4Ah or 5Ah pack.

When the Cordless Option Makes Financial Sense

If you’re doing a one-time plumbing repair with 5 or 10 connections, the RYOBI P660 is more tool than you need. But if you’re doing whole-house PEX, regular contractor work, or multiple projects per year, the time savings and reduced hand strain make it a worthwhile investment — especially if you already own RYOBI 18V batteries. Think of it as the tool you buy when you want to stop dreading a full day of crimping.

What to Check Before Purchasing

Confirm your PEX project uses stainless steel pinch clamps before ordering. Also verify that your existing battery platform is RYOBI ONE+ 18V — this tool won’t work with other voltage systems or competing brands. If you’re buying your first RYOBI tool, budget for at least one 18V battery separately, as the P660 is sold tool-only and a battery is required to operate it.

6. IWISS Combo Angle Head PEX Crimping Tool – Compact No-Swap Design

The IWISS IWS-1234W is the compact, stripped-down angle head option for people who want the tight-space capability of the IWISS combo kit without carrying the full kit weight. At 2.27 pounds with no interchangeable parts, this tool is lighter and simpler than most options in this category, which makes it genuinely convenient to keep in a tool bag for on-the-go plumbing repairs.

The 2-in-1 design handles both 1/2-inch and 3/4-inch copper crimp rings in a single fixed head — no swapping jaws between sizes. In practice, this is a significant time saver when you’re moving between fixture drops of different sizes. The angled geometry lets you approach fittings that a straight tool simply cannot reach, which is why this tool gets recommended regularly on plumbing forums for manifold work and under-sink supply lines.

I tested this one on a water heater replacement where the supply lines ran close to the wall and needed to be crimped at an awkward angle. The angled head let me get solid crimps in positions where my straight tool would have been useless. The learning curve here is positioning — because the head is at an angle, you can’t always see the ring placement clearly before you close the jaw. Take your time on the first few crimps and verify each one with the included Go/No-Go gauge until you develop a feel for it.

One honest observation from the review community: some users report that the Go/No-Go gauge included with this specific model runs slightly inconsistent, occasionally giving a borderline reading that requires re-checking. If you’re using this for production work, I’d recommend supplementing with a separate calibration gauge for final verification on critical connections.

Ideal Scenarios for This Tool

The IWISS angle head is the right pick for professionals and experienced DIYers who know exactly when they need tight-space capability and want a lightweight, no-fuss option that covers the two most common residential PEX sizes. It’s also a good “second tool” for contractors who carry a full-range crimper for general work but keep this compact angle head for the inevitable awkward installations.

Limitations to Understand Before Buying

This tool does not handle 1-inch PEX or anything smaller than 1/2-inch. For whole-house projects that include main supply runs in 1-inch, you’ll need to carry an additional tool for those connections. Also, this tool handles copper crimp rings only — it is not compatible with stainless steel clamps or cinch connections. Make sure your fittings match the ASTM F1807 copper ring standard before purchasing.

7. SHALL PEX Crimping Clamp Cinch Tool Kit – Solid Manganese Steel Build

The SHALL kit caught my attention because of the manganese steel construction at its price point. Manganese steel is genuinely tougher than the alloy blends used in most budget tools — it resists deformation under repeated loading, which matters for a tool you’ll be squeezing hard dozens of times per project. For a cinch clamp tool at this price, that material choice is unusual and appreciated.

The ratcheting mechanism with automatic release makes operating this tool feel smooth and repeatable. Each time you fully close the jaw, the ratchet releases automatically, so you don’t have to manually reset between crimps. That sounds minor until you’re 30 connections in and realize how much mental load that small detail removes. The interior jaw geometry is cut by wire EDM (electrical discharge machining), which means the jaw profile is very precise — important for consistent ring compression.

The complete kit includes the cinch tool, a PEX pipe cutter, 20 pieces of 1/2-inch clamps, 10 pieces of 3/4-inch clamps, a calibration tool, a pair of gloves, and a storage bag. At the price point this kit sells at, getting all of that in one package is strong value for a homeowner starting their first PEX project. The factory-adjusted calibration means you can open the bag and start working without spending time on setup.

The handles are 8.5 inches long with dual-color anti-slip rubber grip, which is longer than the CHEN CHEN HAO and provides noticeably better leverage for larger clamp sizes. Still, with 1-inch clamps, you’ll be squeezing fairly hard. The pipe cutter is functional but some users report it can leave a slightly uneven cut on thicker PEX tubing — for critical connections, I’ll often double-check my cuts and trim again if the face isn’t clean and square.

Build Quality Versus Comparable Budget Tools

Compared to other cinch tools in the same price range, the manganese steel body and EDM-cut jaws are clear differentiators. Most budget tools use cast alloy components that can flex and deform over time as the metal fatigues. The SHALL should hold calibration and jaw geometry better over extended use, making it a better long-term investment even if you’re buying it for a single large project.

Is the Included Pipe Cutter Reliable Enough to Use?

The included cutter works fine for standard PEX tubing cuts when you take your time and score the cut line before applying pressure. It’s best suited for occasional use on 1/2-inch and 3/4-inch PEX. If you’re doing heavy production cutting — dozens of cuts per day — you’ll likely want to invest in a dedicated PEX pipe cutter with a stronger blade. For the typical DIY project represented by this kit, the included cutter handles the job.

8. CHEN CHEN HAO PEX Clamp Cinch Tool – Budget-Friendly Starter Kit

I’ll be straightforward: the CHEN CHEN HAO is the “I just need to fix this one thing” option. It’s the tool you buy when you’ve discovered a leak under the bathroom sink on a Saturday afternoon, you need to replace a section of PEX, and you want to spend as little as possible while still getting the job done correctly. It meets the ASTM 2098 standard for stainless steel clamps, comes with clamps included, and works. That’s the honest summary.

The ratchet mechanism operates simply — position the jaw on the clamp, squeeze the handle, and the ratchet advances the jaw to the correct compression. There’s no complex adjustment or technique required. This simplicity is actually its biggest selling point for homeowners who aren’t regular plumbers. I’ve recommended it to several neighbors doing RV plumbing repairs and single-fixture additions, and none of them reported problems getting it to work correctly on the first try.

The kit comes with the cinch tool, a pipe cutter, 10 pieces of 1/2-inch clamps, and 10 pieces of 3/4-inch clamps, packed in a bag. It handles clamp sizes from 3/8-inch through 1-inch, which is the full residential range. The stainless steel body is reasonably solid for the price, and the contoured handles provide a workable grip. The calibration tool is included, and the factory setting was accurate on the unit I received.

The limitations become apparent in tighter spaces. The jaw profile on this tool is larger than more expensive options, which means it can be genuinely awkward in close quarters. If you’re working on pipe that has more than about 6 inches of clear space around it, you’ll be fine. Shoehorn it into a tight spot and you’ll be wrestling with positioning. The r/Plumbing community captures this well: “iCrimp is fine, it is tricky getting some of the really tight corners” — and this tool shares that tendency more than most.

Who This Tool Is Right For

This is the right tool for homeowners doing their first PEX project, RV owners making water line repairs, and anyone who needs to make a small number of cinch clamp connections on accessible pipe with good clearance around it. It’s also a reasonable backup tool to keep in a truck box for emergency field repairs when you don’t want to risk damaging a more expensive tool in rough conditions.

When to Spend More

If you’re doing more than 20 to 30 connections, working in tight spaces, or expecting to use this tool on multiple projects over the coming years, the extra cost of a tool like the SHALL or iCrimp is worth it. The ergonomics, leverage, and jaw precision of mid-range tools make a noticeable difference over extended use, and the CHEN CHEN HAO will start showing its price point limitations more clearly the more you use it.

How to Choose the Right PEX Crimping Tool

PEX A, B, and C – Which Tool You Actually Need

This is the question that trips up a lot of first-time PEX buyers. PEX-A, PEX-B, and PEX-C refer to the manufacturing method of the pipe, and they affect what connection system you can use. PEX-A uses expansion fittings, where you expand the pipe end with a special expansion tool before inserting the fitting. PEX-B and PEX-C use copper crimp rings or stainless steel clamps — the type of connections covered by every tool in this guide.

Almost all the PEX sold at big box stores is PEX-B. If you’re buying pipe at Home Depot, Lowe’s, or a local plumbing supply house without specifically requesting PEX-A, you almost certainly have PEX-B. PEX-B works with ASTM F1807 copper crimp rings and ASTM F2098 stainless steel cinch clamps — both types covered in this roundup. Check the pipe packaging before buying a tool.

Crimps vs Clamps – What Is the Difference

A crimp connection uses a copper crimp ring that compresses around the outside of the PEX tubing and fitting barb when you close the crimping tool jaw. A clamp (or cinch) connection uses a stainless steel band clamp that’s tightened with a cinch tool. Both methods create reliable, leak-free connections when done correctly.

The practical difference comes down to tools and working conditions. Copper crimp rings require more squeeze force than stainless steel cinch clamps, especially in larger sizes. Stainless steel cinch clamps are generally easier to apply in tight spaces because the cinch tool jaw profile is narrower. For corrosive environments or wet locations, stainless steel clamps have a durability edge. For most residential water supply applications, either method works perfectly well.

Crimp connections using copper rings (ASTM F1807) are inspected and approved in virtually every US jurisdiction and are the method most licensed plumbers are most familiar with. Cinch connections (ASTM F2098) are equally code-compliant but are less universally understood by inspectors in some areas — worth confirming with your local building department if you’re working on a permitted project.

Size Capacity – 1/2-inch vs 3/4-inch vs Full Range

Most residential water supply lines use 1/2-inch PEX for fixture drops and 3/4-inch for main branch lines. If you’re doing a small project — a single bathroom, a laundry connection, a water heater supply — a 1/2-inch and 3/4-inch combo tool will handle everything you encounter.

For main supply runs from the pressure reducing valve to the manifold, 1-inch PEX is common in larger homes or those with high fixture counts. If your project involves any 1-inch runs, you need a tool with 1-inch capability. The iCrimp F1807 kit is the most practical option here, with interchangeable jaws from 3/8-inch through 1-inch in a single kit. The 3/8-inch size is used primarily for radiant heating systems and some appliance connections — uncommon in basic water supply work.

Go/No-Go Gauge – Why It Matters

A Go/No-Go gauge is the quality control check for PEX crimp connections. After you make a crimp, you slide the “go” side of the gauge over the crimped ring. If it passes, the crimp is within the correct compression range. Then you try the “no-go” side — if the gauge does not fit over the ring, the crimp is not over-compressed. Both tests need to pass for the connection to be code-compliant and reliable.

A lot of DIYers skip this step and trust their technique. That works fine until it doesn’t — and a failed crimp that passes visual inspection but fails under water pressure will leak inside a wall and cause thousands of dollars in damage before you find it. Every serious PEX installation should include Go/No-Go verification on every crimp. Tools like the KF CPTEC and iCrimp kits include this gauge; if your tool doesn’t come with one, buy a separate gauge before you start.

Common PEX Crimping Mistakes to Avoid

Based on forum discussions, professional plumber input, and my own experience, these are the mistakes that show up most often in PEX crimp failures.

Not pushing the fitting in all the way is the most common error. The PEX tubing needs to be seated fully over the fitting barbs — there should be no visible gap between the end of the tubing and the fitting shoulder. Slide the tubing on until it stops. Then position the crimp ring 1/8 to 1/4 inch from the end of the tubing before crimping.

Over-crimping causes the ring to compress past the optimal range, which can crack the fitting or score the PEX tubing wall. This is why the “no-go” test exists — it catches connections that were squeezed too hard. Consistent technique and a calibrated tool minimize this risk.

Using the wrong ring for the pipe size is a surprisingly common mistake when working from a kit that contains multiple ring sizes. A 3/4-inch ring on 1/2-inch tubing will not compress correctly and the connection will leak. Double-check ring size before every crimp, especially if you’re switching between pipe sizes on a manifold installation.

Cutting PEX at an angle is another frequent issue. The cut end of the PEX tubing must be square and clean before you slide it onto the fitting. An angled cut means the fitting doesn’t seat evenly inside the tubing, which creates weak points in the connection. Use a quality PEX cutter and verify the cut face is flat before proceeding.

Frequently Asked Questions

Final Thoughts

After testing and evaluating all eight of these tools, the right choice comes down to your project scope and working conditions. For most DIY homeowners doing a bathroom remodel or kitchen repair, the iCrimp PEX Clamp Tool Kit or the KF CPTEC Combo Crimping Tool will cover everything you need at a reasonable price. Both deliver professional-quality connections with minimal learning curve.

For whole-house PEX work or projects where you need full size coverage from 3/8-inch to 1-inch, the iCrimp F1807 Kit is the best single investment you can make. The RYOBI cordless option is worth considering if you’re doing production-volume work and want to eliminate hand fatigue. Whatever your situation, the best plumbing crimping tools for PEX connections are the ones that match your pipe type, your working space, and how many connections you actually need to make.

Take the Go/No-Go gauge seriously on every single crimp you make — especially before you close up a wall. One missed verification is all it takes to turn a successful plumbing project into a water damage claim in 2026.