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Skid Steer Auger

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A skid steer auger isn't really one attachment, it's two: the drive unit and the bit. The drive turns hydraulic flow from the loader into rotational torque. The bit is what actually digs. Match them wrong and the auger either bogs in soft soil or refuses to bite hard ground at all. Match them right and you can sink fence posts, plant trees, set utility poles, and break out concrete footings.

The auger drives in this collection cover standard-flow loaders running 10 to 20 GPM and high-flow machines running 20 to 42 GPM. Final drive sizes are listed as 2-inch hex, 2-inch round, or 2 9/16-inch round to match the bit catalog. Standard earth bits, rock bits with carbide teeth for hard ground or concrete, tree-planting bits with cone-shaped flighting for root balls, and bit sizes from 6 inches up to 36 inches across diameter. Order by flow first, bit type second.

Why Choose Skid Steer Augers from Skid Steer Store?

  • Drive units sized to your loader's hydraulic flow rating, with standard and high-flow options across the catalog.

  • Bit catalog covering earth, rock, and tree-planting in diameters from 6 to 36 inches, plus extensions for deeper holes.

  • Free shipping on orders over $5,000, direct to your yard or job site, with fitment specialists by phone.

  • 30-day satisfaction guarantee and price match on every auger drive and bit we carry.

You Might Also Like

  • Digga Attachments -- Digga's full attachment catalog including the auger drives stocked in this collection, useful for shopping the brand directly.

  • Mini Skid Steer Augers -- Auger drives sized for mini skid steers and compact utility loaders, useful when the carrier is smaller than a standard skid steer.

  • Excavator Augers -- Auger drives sized for excavators and mini excavators when the digging job calls for a different machine.

  • Post Drivers -- Hydraulic post drivers for skid steers, useful when the post-setting job follows the post-hole job.

Best Skid Steer Auger for...

Fence Post Installation

The best skid steer auger for fence post installation is a standard-flow drive paired with a 6 to 12-inch earth bit, sized to leave 2 to 3 inches of clearance for gravel or concrete backfill. Most fence-line jobs run on 10 to 20 GPM standard-flow loaders.

Tree Planting and Landscape Work

The best skid steer auger for tree planting is a tree-planting bit with cone-shaped, double-flighted design that leaves room for root balls. Bit sizes 12 to 36 inches handle small saplings up to large landscape trees. Pair with a standard or high-flow drive depending on soil density.

Rocky Ground and Concrete Footings

The best skid steer auger for rocky ground and concrete footings is a high-flow drive paired with a rock bit using carbide teeth and hard-faced flighting. Standard earth bits will not handle these conditions. Plan for 20 to 42 GPM and a heavy-duty drive unit with a planetary gear reduction.

Deep Holes for Utility Poles

The best skid steer auger for deep utility pole holes is a standard auger drive paired with bolt-on extensions or a variable extension that lets the bit reach beyond the standard 4-foot depth. Sign and pole work often requires 5 to 8 feet, achievable through extension stacks or telescoping boom mounts.

Frequently Asked Questions

What hydraulic flow does a skid steer auger need?

Standard-flow auger drives need 10 to 20 GPM, which fits most standard skid steers. High-flow drives need 20 to 42 GPM and require a high-flow loader. Always match the drive to the lower end of your loader's flow rating, since exceeding the drive's rated flow can damage internal components.

What sizes do skid steer auger bits come in?

Skid steer auger bits range from 6 inches to 36 inches in diameter, with the most common sizes being 9, 12, 18, and 24 inches. Bit length is typically 4 feet for standard work, with bolt-on extensions available to reach 5, 6, or more feet for utility pole and deep footing work.

What is the difference between an earth bit, a rock bit, and a tree-planting bit?

An earth bit handles soft and medium soil with a single or double flight and a bolt-on point. A rock bit uses carbide teeth and hard-faced flighting to break shale, frozen ground, or concrete. A tree-planting bit is cone-shaped with smaller-diameter flighting at the bottom to leave space for root balls and fertilizer.

How deep can a skid steer auger drill?

Most skid steer augers drill to about 4 feet using a standard bit. Bolt-on extensions can extend depth to 5 or 6 feet, and telescoping boom-mounted setups can reach further still. Beyond that, switch to a different attachment platform like an excavator auger.

Will a skid steer drill attachment dig through concrete?

Yes, with a high-flow drive and a rock bit equipped with carbide teeth and hard-faced flighting, a skid steer auger can drill through concrete footings and shale. Standard earth bits will not. The drive needs to be rated for the torque demand, which usually means a planetary gear-reduction unit on a high-flow loader.

What is the difference between an auger drive and a complete auger attachment?

The drive is the hydraulic motor and gear reduction that turns the bit. A complete auger attachment is the drive plus a specific bit. Many operators buy a single drive and multiple bits, swapping bit sizes for different jobs while keeping the same drive on the loader.

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