AUGER ATTACHMENTS AND IMPLEMENTS

HOW TO CHOOSE AUGER ATTACHMENTS AND IMPLEMENTS

The right Bobcat® auger attachment starts with carrier compatibility – then gets dialed in for the ground and the hole you need. Confirm your machine’s mount fit, hydraulic flow (gpm), and lift capacity first. From there, match torque, bit style, and teeth to your soil conditions so you drill straighter, faster,  and with less fight. 

Start With Your Carrier

Your carrier determines what auger options you can run and how hard you can push it. 

• Confirm compatibility: Make sure the auger attachment is approved for your machine and mounting interface (for example, Bob-Tach® on many loaders). 
• Check hydraulics: Match auxiliary hydraulic flow/pressure to the auger’s requirements so you get proper speed and torque. 
• Know your limits: Keep the bit, drive unit, and material load within your machine’s rated capabilities. 

Match Torque and Teeth to the Ground 

Ground conditions decide whether you cruise – or stall out. 

• Soft to medium soil: Standard bits and teeth typically handle everyday drilling. 
• Compacted ground, rock or frost: Step up to higher torque and use the correct rock or frost teeth to keep the hole clean and true. 
• Uneven terrain: Look for features that help maintain plumb holes when the surface isn’t level. 

Choose Hole Depth and Diameter

  Size the bit to the job – then plan for depth. 

• Posts and signs: A common starting point is a 6-inch bit for 4x4 posts. 
• Trees and shrubs: Often 12 inches or larger, depending on root ball and planting needs. 
• Footings and poles: Match diameter to spec, then add extensions when you need extra depth. 

Decide What Matters More - Torque or Speed

Don’t chase rpm when the ground is the problem. 

• Prioritize torque for tough digging, larger-diameter bits,  and rocky or frozen conditions. 
• Prioritize speed for softer soils where higher hydraulic flow can increase production.

Quick Checklist

1. Carrier approval, mount fit, and hydraulic flow (gpm). 
2. Ground type (soil, clay, rock, frost) and the right bit or teeth package. 
3. Hole diameter and depth (plus extensions if needed). 
4. Terrain and control needs for straight, plumb holes.
5. Dealer support to confirm the best auger/bit match for your machine and work.

Fast Picks

• Fence posts and sign installs: Standard bit setup sized to post requirements.
• Tree planting: Larger-diameter bit with depth planned for root ball needs.
• Rocky ground: Rock teeth + higher torque configuration.
• Frozen conditions: Frost teeth + torque-first setup for clean, consistent holes.

Once you’ve narrowed it down, your local Bobcat dealer can help confirm fit, bucket options and setup so your backhoe attachment shows up ready to dig on day one.