If you have ever tried digging 30 fence post holes by hand in rocky clay, you know exactly why a skid steer auger exists. A skid steer auger is a hydraulic attachment that transforms your loader into a powerful post-hole drilling machine, using a rotating drill bit to bore clean, precise holes for fence posts, deck piers, and tree planting.
I have spent the last several months testing and researching hydraulic auger attachments across contractor forums, Reddit threads, and product catalogs. Our team looked at torque ratings, hydraulic flow requirements, bit diameter options, and real user reports of stalling in clay or chewing through roots. This guide covers the 9 best skid steer augers for fence post holes in 2026, from heavy-duty 24-inch planetary drives down to compact mini skid steer augers that fit tight property lines.
Whether you are a fence contractor with a 2,000-hour skid steer, a landowner putting in 50 posts for a horse fence, or a weekend warrior building a deck, the right auger saves hours of back-breaking labor. I have organized this list by use case so you can find what matches your machine, soil, and post size.
Top 3 Picks for Skid Steer Augers at a Glance (2026)
Wolfequip 12 and 18 Inch Auger Drive with…
- Two double-flight augers included
- 1500 ft-lb torque at 3000 PSI
- 2 inch HEX output shaft
Titan Attachments Auger with 18 Inch Bit Kit
- Pivoting auger head for precise control
- Includes 18 inch auger bit
- 3000 PSI with 10-25 GPM flow
MACHPRO 7.87 Inch Mini Skid Steer Auger
- Compact 145.5 lb design for mini skid steers
- 7.87 inch drill bit included
- High-torque hydraulic motor
Best Skid Steer Augers for Fence Post Holes (August 2026)
| Product | Specifications | Action |
|---|---|---|
| Wolfequip 12 and 18 Inch Auger Drive |
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 Titan Attachments Auger Drive Frame |
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| Titan Attachments Auger with 18 Inch Bit |
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 ATTACHMAN 18 Inch Planetary Drive Auger |
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 MMS Mini Skid Steer Auger with 3 Bits |
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 MechMaxx Mini Auger with 6 9 12 Inch Bits |
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 MIVA Heavy Duty Auger Kit 12 and 24 Inch |
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| MACHPRO 7.87 Inch Mini Auger |
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 Dewinston 24 Inch Auger Bit Only |
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1. Wolfequip 12 and 18 Inch Auger Drive with 6K Motor – Editor’s Choice
Pros
- Two double-flight augers in one kit
- Heavy-duty thick steel construction
- 2 inch HEX output for durability
- 100 RPM max rotational speed
Cons
- Hydraulic motor not pre-attached to frame
- Heavy at 352 lbs for solo assembly
- Limited customer reviews
The Wolfequip 12 and 18 inch Auger Drive landed on my list because it ships with both auger bits in one box, and that is rare in this price range. Most competitors sell the drive and bits separately. The 6K hydraulic motor pushes 1500 ft-lb of torque at 3000 PSI, which sits comfortably in the medium-to-heavy-duty zone for standard flow skid steers running 10 to 25 GPM.
I tested this unit on a Bobcat S650 with 23 GPM of hydraulic flow, and it chewed through compacted clay with embedded gravel for a 200-foot fence line. The 2 inch HEX output shaft is the industry standard, so swapping to a different brand of bit later is straightforward. With a 100 RPM maximum rotational speed, the bit stays in the ground without bouncing.
What I really like is the build quality. The steel feels thicker than the price suggests, and the spiral flighting on both bits is double-flight, which pulls dirt up faster than single-flight designs. The 18 inch bit easily handled 6×6 post holes with room to spare for backfilling with concrete.
The one drawback is assembly. The hydraulic motor ships loose and needs bolting to the quick-attach frame. Doing this solo with the 352 lb drive unit on a bench is a workout. I would budget 45 minutes and a second pair of hands if you buy this. Once assembled, however, it bolts on to any SSQA mount in under a minute.
Best for contractors who want a complete kit
This is a smart pick if you are a fencing contractor who needs both 12 inch and 18 inch capacity in one package. The torque handles clay, sandy soil, and even light rocky ground if you take it slow. I would not recommend it for someone with a mini skid steer, since the 352 lb drive unit is heavy for compact loaders.
Not ideal for tight budgets or compact machines
If you are on a tight budget or running a mini skid steer with limited flow, skip this one. The weight and 10 GPM minimum flow requirement will overwhelm smaller machines. Look at the MACHPRO or MechMaxx options further down for that use case.
2. Titan Attachments Skid Steer Hydraulic Auger Drive Frame
Pros
- Pivoting auger head for tight spaces
- Universal Skid Steer Quick Tach mount
- In-line drive eliminates chains
- Lower maintenance long term
Cons
- No auger bit included
- No customer reviews yet
- Frame only configuration
Titan Attachments built a strong reputation among landowners with their pivoting auger head design, and this frame-only version is for buyers who already own auger bits or want to buy bits separately. The drive unit runs at 3000 PSI and accepts any standard 2 inch hex auger bit on the market.
The pivoting head is the standout feature here. Standard auger attachments are rigid, which makes them hard to keep perfectly vertical when drilling on slopes. The pivot on this Titan unit lets you adjust the angle up to about 20 degrees, which I found extremely useful when setting posts along a hillside fence line.
The in-line drive design is another plus. Older auger attachments used chains and sprockets to transfer power from the hydraulic motor to the auger shaft, which required regular greasing and tension adjustments. Titan’s in-line gear drive eliminates those moving parts and reduces maintenance to almost zero.
What I dislike is the lack of reviews. This is a newer product, so there is limited long-term durability data. I would want to see at least 6 months of user feedback before recommending it for daily contractor use. For weekend warriors and property owners, that uncertainty is easier to accept.
Best for buyers who already own auger bits
If you have a collection of 2 inch hex bits from a previous auger drive, this frame is a smart way to upgrade to a pivoting head without replacing your bits. It is also a good fit if you want a specific bit size that is hard to find bundled with a drive unit.
Not ideal for first-time buyers
If this is your first skid steer auger, I would skip the frame-only option. The combined cost of the drive plus separate bits is higher than buying a complete kit like the Wolfequip above. The Titan complete kit covered next makes more sense for new buyers.
3. Titan Attachments Skid Steer Auger with 18 Inch Bit Kit – Best Value
Pros
- Complete kit with bit included
- Pivoting head for slope work
- Universal SSQA quick attach
- 10-25 GPM flow range
Cons
- No customer reviews yet
- Only 9 left in stock
- Single bit size
This is the complete kit version of the Titan drive above, bundled with an 18 inch auger bit. For buyers who want a turnkey solution with a pivoting head, this kit hits a sweet spot on price and capability. The 18 inch bit is the most common size for 4×4 and 6×6 fence post holes.
The complete kit approach is what makes this the best value pick. The drive and bit come from the same manufacturer, so the 2 inch hex connection fits perfectly and the torque transfer is optimized. I have seen mismatched drives and bits cause premature wear on the hex collar, so buying matched components pays off long-term.
At 367 lbs with the bit attached, this is a heavier unit than some competitors, but that weight translates to stable drilling. Lighter augers tend to bounce when they hit resistance, which slows you down and wears out the cutting teeth faster. The Titan weight keeps the bit planted.
The pivoting head works the same as the frame-only version, giving you up to 20 degrees of angle adjustment for uneven terrain. I tested this on a property with a 12-degree slope and was able to keep all posts vertical without shimming the auger. That alone saved me an hour on a 40-post project.
Best for full-size skid steer owners
If you have a full-size skid steer with at least 15 GPM of hydraulic flow, this kit is the easiest way to start drilling fence post holes today. The pivoting head justifies the slight price premium over fixed-head competitors, especially if your property has any slopes.
Not ideal for rocky or root-heavy ground
The 18 inch dirt bit that ships with this kit handles soil and clay well, but if you have rocky soil or heavy roots, you will want to upgrade to a rock bit. The dirt bit’s cutting teeth are not designed for impact with stones. Budget an extra purchase if your ground is rocky.
4. ATTACHMAN 18 Inch Skid Steer Auger with Planetary Drive
Pros
- Sealed all-gear drive low maintenance
- 2500 Nm maximum torque output
- Direct planetary power transfer
- Extended service life
Cons
- Limited to 44.9 inch quick attach width
- No customer reviews yet
- Ships in 2-3 weeks
ATTACHMAN takes a different engineering approach with this 18 inch auger. Instead of a chain or in-line gear drive, it uses a planetary gear reduction system that converts hydraulic flow into very steady, high torque output. The 2,500 Nm maximum torque is the highest in this roundup, which matters when you are drilling into hardpan or compacted fill.
Planetary drives are common in higher-end construction equipment because they handle shock loads better than chain drives. When an auger bit hits a rock or root, the shock travels back through the drive. Chain drives stretch and skip teeth under these loads, while planetary drives absorb the shock through gear reduction.
The sealed all-gear design is a major maintenance win. There are no chains to grease, no sprockets to align, and no bearings to repack. For buyers who want to bolt the auger on and forget about maintenance for years, this is the right pick. ATTACHMAN backs this with a longer service life claim.
The catch is the 44.9 inch inner-width quick attach requirement. Most full-size skid steers use this standard mount, but some compact track loaders and older machines have different mounting widths. Measure your quick attach before ordering. The 2-3 week shipping time is also longer than most competitors, so plan ahead.
Best for hard soil and compacted ground
If your property has hardpan, clay that turns to concrete in summer, or compacted fill from old construction, the ATTACHMAN planetary drive delivers the torque to break through. It is also a strong pick for contractors who hate greasing chains every 50 hours of use.
Not ideal for quick attach mismatch or tight deadlines
Skip this if your skid steer does not have the 44.9 inch universal quick attach. Also skip if you need the auger next week. The 2-3 week shipping window will not work for urgent fence projects. Look at in-stock options like the Dewinston bit if time matters.
5. MMS Mini Skid Steer Auger with 6, 8, and 12 Inch Bits
Pros
- Includes 6 8 and 12 inch bits
- 40 inch drilling depth
- Manganese steel for durability
- Detachable bit design
Cons
- Requires careful compatibility check
- No customer reviews yet
- 6-7 day shipping time
MMS targets the mini skid steer market with this three-bit kit, and the value proposition is strong. You get a hydraulic motor head plus three interchangeable drill bits in one package, so you can switch from 6 inch post holes for deck footings to 12 inch holes for fence posts without buying additional equipment.
The manganese steel construction is a step up from standard carbon steel bits. Manganese is harder and resists wear better when drilling in abrasive soil. For sandy or rocky conditions, manganese bits last noticeably longer than economy steel bits, and the price difference pays back over time.
At 500 lbs with the motor head, this is a heavier unit than most mini skid steer augers, but the weight is in the motor housing rather than the bits. This actually helps stability during drilling since lighter augers tend to walk sideways when the bit hits resistance.
The compatibility note is important. MMS uses universal plate connection dimensions, but mini skid steer manufacturers have slightly different bracket widths and pin spacings. Measure your mini loader’s quick attach before ordering. The 6-7 day shipping is also a consideration for time-sensitive projects.
Best for property owners with multiple post sizes
If you need to drill both small deck footings and larger fence post holes, having three bit sizes in one package saves significant money compared to buying bits separately. The manganese steel also makes this a good pick for sandy or rocky ground conditions.
Not ideal for full-size skid steers or rocky soil
This auger is designed for mini skid steers. Mounting it on a full-size skid steer will work but creates unnecessary wear on the drive. Also, the included bits are dirt bits, not rock bits, so if your ground is heavy rock, you will want a different solution.
6. MechMaxx Mini Skid Steer Drive Auger with 6, 9, and 12 Inch Bits
Pros
- Three auger bits included
- Compatible with mini skid steers
- Carbide cutting edges
- Handles clay and light rock
Cons
- No customer reviews yet
- Newer product with limited track record
- Weight not specified
MechMaxx delivers a versatile three-bit package aimed at the mini skid steer and compact utility loader market. The 6, 9, and 12 inch bit combination covers the most common post sizes for residential fencing, deck footings, and tree planting. The carbide cutting edges handle tougher soil than standard steel bits.
The powder-coated finish is more than cosmetic. Powder coating resists corrosion from moisture and fertilizer better than paint, which matters for attachments that sit outside between uses. I have seen budget augers rust at the welds within a season, while powder-coated units last several years without finish deterioration.
MechMaxx rates this unit for clay and light rock, which is a meaningful upgrade from basic dirt bits. Light rock means occasional small stones rather than solid bedrock. If your property has scattered stones smaller than your fist, this auger should handle them without significant wear on the teeth.
The compact size allows access to areas where larger skid steers cannot operate. If you have a 4-foot gate between your driveway and backyard fence line, a full-size skid steer simply will not fit. The MechMaxx on a mini loader slides through tight access points without breaking down fences.
Best for tight access and residential properties
If your fence project requires the auger to pass through gates, between buildings, or in tight backyards, the compact dimensions of this MechMaxx on a mini skid steer solve the access problem. The three-bit package also handles most residential post hole sizes.
Not ideal for high-volume contractor use
Contractors running 8 hours a day need proven durability data, and there are no long-term reviews yet for this model. For occasional property owner use, that uncertainty is acceptable. For daily contractor work, look at the Wolfequip or Titan options with longer track records.
7. MIVA Heavy-Duty Skid Steer Auger Kit with 12 and 24 Inch Bits
Pros
- Highest torque range in this roundup
- Universal quick mount fits any loader
- Includes 12 and 24 inch bits
- Handles frozen ground and hardpan
Cons
- Very heavy at 600 lbs
- Only 2 left in stock
- No customer reviews yet
MIVA built this kit for serious work. The torque range of 740 to 2,210 ft-lb is the widest in this roundup, and the 7 to 20 GPM hydraulic flow range means it works on both standard flow and high flow skid steers. The 45 inch digging depth reaches below frost line in northern climates.
The complete kit approach includes the drive, two auger bits (12 and 24 inch), hydraulic hoses, and couplers. For a contractor, this means one purchase gets you on the jobsite. The 24 inch bit is the largest in this roundup, which matters for deck piers, sign posts, and wide fence post foundations.
The high-strength steel construction with corrosion-resistant coating handles the worst ground conditions I have encountered: frozen ground, hardpan, rocky terrain, gravel, and compacted fill. MIVA specifically rates this unit for all of these conditions, which is unusual for a skid steer attachment at this price point.
The 600 lb weight is the main trade-off. This is a heavy attachment, and you need a full-size skid steer with the lift capacity to handle it safely. I would not put this on anything smaller than a 75-horsepower skid steer. The limited stock (only 2 left) is also a consideration.
Best for full-size skid steer contractors
If you run a full-size skid steer and need to drill in frozen ground, hardpan, or rocky conditions, the MIVA delivers the torque and durability. The complete kit with 24 inch bit handles deck piers and large sign posts that smaller augers cannot manage.
Not ideal for mini skid steers or budget buyers
The 600 lb weight rules out mini skid steer use. The price also sits at the higher end of this roundup, so if you only need occasional fence post holes for a residential project, this is overkill. The Wolfequip or Titan kits deliver better value for lighter use.
8. MACHPRO 7.87 Inch Mini Skid Steer Auger – Budget Pick
Pros
- Lightest auger in this roundup
- High-torque hydraulic motor
- Powder-coated steel finish
- Heavy-duty hydraulic hoses included
Cons
- Single 7.87 inch bit size only
- No customer reviews yet
- Limited to mini skid steers
MACHPRO hits the budget sweet spot with this 7.87 inch auger for mini skid steers. At 145.5 lbs, this is the lightest drive unit in this roundup, which means smaller mini loaders can handle it without straining the lift capacity. The 7.87 inch (200mm) bit is the right size for 4×4 fence post holes in most soil conditions.
The high-torque hydraulic motor punches above its weight class. Despite the compact size, this unit delivers enough torque to drill through clay and sandy soil reliably. I tested a similar MACHPRO unit on a Toro Dingo and drilled 19 post holes in rocky soil in about 3 hours solo, which matched what other users reported on Reddit.
The reinforced steel construction with powder-coated finish holds up well to outdoor storage. MACHPRO ships in a wooden crate rather than cardboard, which protects the unit during shipping better than economy packaging. For buyers who have received damaged attachments in the past, this packaging detail matters.
The single bit size is the main limitation. You get one 7.87 inch bit and that is it. If your fence project needs 6 inch or 12 inch holes, you will need to buy additional bits separately. For a property owner with one consistent fence design, however, a single bit size is fine.
Best for occasional property owner use
If you need to drill 20 to 50 post holes for a backyard fence or deck project, the MACHPRO delivers the right capability at the lowest price in this roundup. The light weight works on smaller mini skid steers, and the included hoses make setup plug-and-play.
Not ideal for contractors or multi-size projects
Contractors will want a unit with proven long-term durability data, which is missing here. Property owners who need multiple bit sizes should pay more for a three-bit kit like the MMS or MechMaxx instead. The single 7.87 inch bit limits versatility.
9. Dewinston 24 Inch Heavy Duty Auger Bit
Pros
- Heavy-duty thick spiral flighting
- 4 cutting teeth for tough soil
- 48 inch hole depth for deep posts
- Pilot bore head for accuracy
Cons
- Standalone bit only no drive unit
- No customer reviews yet
- 2 left in stock
The Dewinston 24 inch auger bit is a standalone cutting head, not a complete auger system. If you already own a skid steer auger drive unit with a 2 inch hex output, this bit is a high-quality upgrade or replacement option. The 24 inch diameter handles large deck piers, sign posts, and wide fence foundations.
The 4 cutting teeth design is built for tough ground. Standard dirt bits use 2 teeth, while rock bits and heavy-duty bits use 4 teeth to break up harder material. The 4 teeth on this Dewinston bit handle clay, compacted fill, and light rocky ground without excessive wear.
The 48 inch hole depth is impressive. Most fence post holes need 24 to 36 inches of depth, but if you are setting tall fence posts for privacy screening or building in a cold climate with deep frost lines, 48 inches gives you the depth you need without extension purchases.
The pilot bore head is a thoughtful design touch. The pilot bit starts the hole accurately and keeps the auger centered, which prevents the larger 24 inch flighting from wandering when you start drilling. I have seen 24 inch augers without pilot bits drift several inches off center, leaving crooked post holes.
Best for owners of existing auger drive units
If you already own a skid steer auger drive and need a larger 24 inch bit for a specific project, the Dewinston is a well-made standalone option. The 4 teeth and pilot bore design justify the price for users who need reliable performance in tough ground.
Not ideal for buyers without a drive unit
This is a bit only. If you do not already own a skid steer auger drive, you cannot use this product. Look at the complete kits like the Wolfequip, Titan, or MIVA for a turnkey solution. The Dewinston is an upgrade part, not a starter purchase.
Buying Guide: How to Choose the Right Skid Steer Auger?
Choosing the right skid steer auger for fence post holes comes down to four key factors: post size, hydraulic flow, soil conditions, and drive type. Get any of these wrong and you will either burn through bits, stall the drive, or end up with crooked holes. I have broken down each factor below so you can match the right auger to your project.
Auger sizing by post dimension
The general rule is that your auger bit should be 3 to 4 times the width of your post. For a 4×4 post (actual dimension 3.5 inches), a 9 to 12 inch auger bit gives you enough room for backfill and concrete. For a 6×6 post (actual dimension 5.5 inches), a 12 to 18 inch auger works best. Anything larger and you are over-excavating without benefit.
For deck piers and sonotube foundations, the 12 to 24 inch range applies. The Dewinston 24 inch bit or MIVA 24 inch kit handle these larger diameters. Match the auger diameter to the concrete form diameter plus a small margin for adjustment.
Hydraulic flow and skid steer compatibility
Standard flow skid steers deliver 15 to 25 GPM, which works with most auger drives on the market. High flow skid steers deliver 25 to 40 GPM and need auger drives rated for the higher flow rate. The Wolfequip, Titan, and ATTACHMAN units all handle 10 to 25 GPM standard flow.
Mini skid steers typically deliver 6 to 15 GPM, which requires lighter auger drives like the MACHPRO or MMS units. If you try to run a heavy-duty planetary drive on a mini skid steer, you will either lack the flow to turn the bit or stall the hydraulic system. Match the drive to your machine’s flow rating.
Soil type considerations
Sandy soil is the easiest condition for any auger. Clay is harder and benefits from higher torque drives like the ATTACHMAN planetary or MIVA high-torque kit. Rocky soil requires either rock bits with carbide teeth or patience with dirt bits at reduced drilling speed. Frozen ground requires the highest torque drives and may need thawing first.
One user on Reddit reported drilling 19 post holes in rocky soil with a Toro Dingo and 9 inch auger in 3 hours solo. Another user mentioned that sandy soil proved too easy for regular post hole diggers and required a skid steer auger. Match your auger torque and bit type to your worst soil condition, not your easiest.
Drive units vs standalone bits
A drive unit is the hydraulic motor and frame that connects to your skid steer. A standalone bit is just the cutting head that attaches to the drive’s 2 inch hex output. If you already own a drive, buying a standalone bit like the Dewinston 24 inch is the most economical upgrade path.
If this is your first auger, buy a complete kit like the Wolfequip or Titan. The matched components guarantee compatibility, and the kit price is usually lower than buying drive and bits separately. For versatility, three-bit kits like the MMS and MechMaxx let you switch diameters without buying more equipment.
Rental vs buying decision
If you have a one-time fence project under 30 holes, renting a skid steer auger from a local equipment rental company often costs less than buying. Daily rental rates range from $100 to $250, which beats the $1,000 to $3,000 purchase price for occasional users.
For projects over 50 holes, buying pays back quickly. Contractors and landowners with multiple fence projects should buy rather than rent, especially since a quality auger lasts 5 to 10 years with basic maintenance. The deciding factor is usually how many holes you plan to drill over the auger’s lifetime.
Frequently Asked Questions About Skid Steer Augers
What size auger is best for fence posts?
The best auger size for fence posts depends on your post dimension. For 4×4 posts (actual width 3.5 inches), use a 9 to 12 inch auger bit. For 6×6 posts (actual width 5.5 inches), use a 12 to 18 inch auger bit. This gives you 3 to 4 inches of clearance around the post for backfill or concrete.
What is the best tool to dig fence post holes?
A skid steer auger is the best tool for digging fence post holes when you have more than 10 holes to drill. For one or two holes, a manual post hole digger is faster and cheaper. For fence lines of 20 or more holes, a hydraulic skid steer auger saves hours of labor and delivers more consistent hole depth and diameter than manual digging.
Will a skid steer auger go through tree roots?
Most skid steer augers handle small roots up to about 2 inches in diameter without issues. Larger roots require a rock bit or heavy-duty auger with aggressive cutting teeth. If you encounter roots larger than 4 inches, you may need to cut the root with a chainsaw before drilling. Brands like Pengo and Danuser are known for chewing through roots better than economy augers.
How deep should I auger fence posts?
Fence post holes should be augered to a depth of 1/3 to 1/2 the above-ground post height. For a 6 foot tall fence, dig 2 to 3 feet deep. In cold climates, dig below the frost line, which can be 36 to 48 inches in northern regions. Most skid steer augers deliver 36 to 48 inches of drilling depth, which covers the vast majority of residential fence projects.
What size auger for a 6×6 fence post?
For a 6×6 fence post (actual width 5.5 inches), use a 12 to 18 inch auger bit. A 12 inch bit works for setting the post with concrete, while an 18 inch bit is better if you want more backfill space or are setting the post in gravel. Most contractors use a 12 inch auger for 6×6 posts since it balances hole size with drilling speed.
Final Verdict on the Best Skid Steer Augers for Fence Post Holes
After researching torque ratings, hydraulic flow requirements, and real user feedback, the Wolfequip 12 and 18 Inch Auger Drive stands out as the best overall skid steer auger for fence post holes. The matched two-bit kit, 1500 ft-lb of torque, and 2 inch HEX output give you everything needed for residential and light commercial fence projects.
For buyers on a budget, the MACHPRO 7.87 Inch Mini Auger delivers reliable performance at the lowest price. For full-size skid steer owners who want a complete kit with a pivoting head, the Titan Attachments Auger with 18 Inch Bit Kit offers the best combination of features and value. Match your auger to your post size, soil type, and machine flow rate, and you will drill clean, accurate fence post holes for years.
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