Drill bit binds and the tool kicks back or twists in your hand

Symptoms

• Drill suddenly jerks or twists violently in your grip
• Bit stops rotating abruptly while the tool tries to keep turning
• This happens most with large bits, hole saws, or auger bits
• Wrist or hand strain after a sudden catch

Likely causes

• CommonLarge bit or hole saw catching in dense material, especially near breakthroughAs the bit exits the far side of thick material, it can suddenly grab and stop.
• CommonBit binding in metal without enough cutting lubricantFriction and heat increase the chance of a sudden bind in metal work.
• CommonNo side handle used on a high-torque tool with a large bitA side handle gives you the leverage to control kickback that gripping only the main handle doesn't.
• PossibleClutch or torque setting too high for the bit and task, so the drill doesn't stop before your wrist absorbs the torqueUsing drill mode (no clutch) with a large bit removes a safety margin a clutch setting would provide.
• PossibleDrilling at an awkward angle or without bracing the materialUnsecured material can spin along with the bit instead of the bit stopping.

What to do

1. Always attach and use the side handle when drilling with large bits, hole saws, or auger bits.
2. Clamp or firmly brace the workpiece so it can't spin if the bit binds.
3. Ease off pressure and slow down as a large bit or hole saw approaches breaking through the far side of the material.
4. Use cutting lubricant on metal to reduce the chance of binding from heat and friction.
5. Keep a firm, two-handed grip and be mentally prepared for a sudden stop, especially on tough or unknown material.
6. If the tool has a clutch, consider a lower torque setting for large-bit work in unpredictable material to reduce kickback severity.

Tools and parts

• Side handle (auxiliary handle)
• Clamps to secure workpiece
• Cutting lubricant (for metal)

Safety