Product Description
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Milwaukee 1/2 in. Chuck for M18 Compact Drill
Model Number: 42-66-0215
The Milwaukee 42-66-0215 is a genuine OEM 1/2 in. Chuck replacement for compatible Milwaukee M18 Compact drills — the keyless chuck that interfaces between the drill's spindle and the drill bit or accessory, providing the bit gripping and retention needed for accurate, safe drilling operations. The chuck is one of the most functionally critical components on any drill — it determines bit concentricity, gripping security against the cutting forces and vibration of drilling, and the runout that directly affects hole quality and bit life. A worn chuck with excessive jaw play, slipping jaw action, or damaged internal mechanisms produces inaccurate holes with excessive runout, allows bit slippage during drilling that can damage workpieces and create safety hazards, and makes bit changes unreliable. Replacing a worn chuck with this genuine Milwaukee OEM 1/2 in. keyless chuck restores the M18 Compact drill's original chuck performance specifications for concentricity, jaw engagement reliability, and secure bit retention.
Milwaukee OEM chucks are manufactured to the correct spindle thread specification, jaw capacity range, and internal mechanism geometry for compatible M18 Compact drill models — using a non-OEM chuck with incorrect spindle thread pitch or diameter creates an unsafe chuck seating condition that risks chuck loosening or ejection during drilling. The keyless design allows tool-free bit installation and removal with a single hand twist of the chuck collar, providing the fast bit change convenience that Milwaukee M18 Compact drills are designed for. Always verify your specific M18 Compact drill model number and serial number at milwaukeetool.com before ordering replacement chuck components, as chuck specifications vary between M18 Compact drill model revisions and production series.
Features
- Genuine Milwaukee OEM 1/2 in. keyless chuck for compatible M18 Compact drills
- Restores concentricity, jaw engagement reliability, and secure bit retention
- Keyless design for tool-free single-hand bit installation and removal
- Correct OEM spindle thread — non-OEM incorrect threads create unsafe chuck seating
- Verify M18 Compact drill model and serial number at milwaukeetool.com before ordering
Specifications
- Chuck Capacity: 1/2 in.
- Type: Keyless
- Compatible Tools: Milwaukee M18 Compact Drills (verify model and serial number)
Includes
- (1) Milwaukee 42-66-0215 1/2 in. Chuck for M18 Compact Drill
