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 1/2 in. Keyless Chuck for M18 FUEL Drill/Driver 2703-20
Model Number: 42-66-8003
The Milwaukee 42-66-8003 is a genuine OEM 1/2 in. Keyless Chuck for the Milwaukee M18 FUEL 1/2 in. Drill/Driver 2703-20 and 2703-22, and the M18 FUEL Brushless Drill-Driver 2803-20 and 2803-22. The keyless chuck is the bit retention mechanism at the front of the drill — it accepts round shank and hex shank drill bits, driver bits, and other accessories and clamps them securely without requiring a chuck key. The chuck jaws open and close by rotating the outer sleeve by hand, allowing fast, tool-free bit changes during drilling and driving operations. A chuck with damaged, worn, or slipping jaws that no longer grips bits securely, or a cracked chuck body that prevents correct jaw movement, requires replacement to restore reliable bit retention on the compatible drill models. The 42-66-8003 replaces obsolete part numbers 42-66-0090 and 42-66-0091.
Using a genuine Milwaukee OEM chuck ensures the correct spindle thread and jaw geometry for the M18 FUEL drill models. Always verify your catalog number and serial number before ordering to confirm this is the correct chuck for your specific unit.
Features
- Genuine Milwaukee OEM 1/2 in. keyless chuck for M18 FUEL Drill/Driver 2703-20, 2703-22, 2803-20, and 2803-22
- Tool-free bit changes — open and close jaws by rotating outer sleeve by hand
- Replaces obsolete part numbers 42-66-0090 and 42-66-0091
- Replacement restores correct bit retention when original chuck jaws are worn or damaged
- Verify catalog number and serial number before ordering to confirm correct model compatibility
Specifications
- Type: 1/2 in. Keyless Chuck
- Compatible Tools: Milwaukee M18 FUEL Drill/Driver 2703-20, 2703-22, 2803-20, and 2803-22 — verify by serial number
- Replaces Obsolete Parts: 42-66-0090 and 42-66-0091
- Compatibility: Always verify part compatibility using your tool's model and serial number before ordering
Includes
- (1) Milwaukee 42-66-8003 1/2 in. Keyless Chuck
