Product Description
**Milwaukee parts change not only by model# but also by serial number. To look up your tools parts break down on Milwaukees website please click here:
Milwaukee Chuck
Model Number: 42-66-0855
The Milwaukee 42-66-0855 is a genuine OEM Chuck for use in compatible Milwaukee drills and drivers. The chuck is the clamping device at the output of the drill that holds drill bits, screwdriver bits, and other round or hex shank accessories — using a jaw mechanism to grip the bit shank concentrically so the bit runs true with minimal run-out during drilling and driving. Milwaukee chucks are engineered to the correct jaw opening range, tightening torque, and run-out tolerance for the tool speed and force they must withstand. A chuck with worn or damaged jaws that allows bits to slip, wobble, or cannot be tightened to correct gripping force requires replacement to restore accurate, secure bit retention and drilling precision.
Using a genuine Milwaukee OEM chuck ensures the correct jaw range, thread specification, and run-out tolerance for the drill spindle it mounts on. Always verify your catalog number and serial number on Milwaukee's website before ordering to confirm this is the correct chuck for your specific unit.
Features
- Genuine Milwaukee OEM chuck for compatible Milwaukee drills and drivers
- Three-jaw clamping device holds bits concentrically for accurate, low run-out drilling
- Engineered to the correct jaw range and gripping torque for the tool speed and force it serves
- Replacement restores accurate bit retention when original chuck jaws are worn or damaged
- Verify catalog number and serial number on Milwaukee's website before ordering
Specifications
- Type: Chuck
- Application: Drill Bit and Accessory Retention on Compatible Milwaukee Drills and Drivers
- Compatibility: Always verify part compatibility using your tool's model and serial number before ordering
Includes
- (1) Milwaukee 42-66-0855 Chuck