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 Coupler Key
Model Number: 06-42-0010
The Milwaukee 06-42-0010 is a genuine OEM Coupler Key for use in compatible Milwaukee M18 FUEL QUIK-LOK Power Head attachments. The coupler key is a small precision machined key that fits into a matching keyway in the driveshaft coupling at the interface between the power head and the QUIK-LOK attachment — locking the two shafts together in rotational alignment to ensure that motor torque is transferred directly to the attachment's driveshaft without slippage. Without a correctly seated coupler key, the coupling can rotate independently of the shaft it drives, resulting in loss of drive power to the attachment or inconsistent performance during operation. A missing, worn, or damaged coupler key that allows driveshaft slippage requires replacement to restore reliable power transfer through the QUIK-LOK attachment interface.
Using a genuine Milwaukee OEM coupler key ensures the correct dimensions, material, and profile for the keyway and coupling it serves. Non-OEM keys may not match the original dimensional tolerances of the keyway, leading to improper fit, excessive play, or driveshaft slippage under load. Always verify your catalog number and serial number on Milwaukee's website before ordering to confirm this is the correct coupler key for your specific unit.
Features
- Genuine Milwaukee OEM coupler key for compatible Milwaukee M18 FUEL QUIK-LOK attachments
- Locks the driveshaft coupling in rotational alignment to transfer motor torque to the attachment
- Prevents coupling slippage that causes loss of drive power at the attachment interface
- Correct dimensions and profile for the keyway and coupling it serves
- Verify catalog number and serial number on Milwaukee's website before ordering
Includes
- (1) Milwaukee 06-42-0010 Coupler Key
