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 7/16 in. Hex Quick Lock Assembly
Model Number: 42-66-0055
The Milwaukee 42-66-0055 is a genuine OEM 7/16 in. Hex Quick Lock Assembly for use in compatible Milwaukee tools. The hex quick lock assembly is the output drive interface that accepts 7/16 in. hex shank accessories — integrating a quick-change locking mechanism that allows the operator to swap 7/16 in. hex shank bits and driver attachments without tools. The assembly must engage the hex shank squarely and lock it securely against pull-out during use, while releasing cleanly when the operator actuates the quick-release for a bit change. A worn, cracked, or non-releasing quick lock assembly that prevents secure bit retention or tool-free bit changes requires replacement to restore correct 7/16 in. hex drive operation.
Using a genuine Milwaukee OEM 7/16 in. hex quick lock assembly ensures the correct hex socket dimensions and release mechanism for the tool it serves. Always verify your catalog number and serial number on Milwaukee's website before ordering to confirm this is the correct assembly for your specific unit.
Features
- Genuine Milwaukee OEM 7/16 in. hex quick lock assembly for compatible Milwaukee tools
- Accepts 7/16 in. hex shank accessories with tool-free quick-change capability
- Locks bit shank securely against pull-out under operating loads
- Replacement restores tool-free bit changes when original assembly is worn or non-releasing
- Verify catalog number and serial number on Milwaukee's website before ordering
Specifications
- Type: Quick Lock Assembly
- Hex Size: 7/16 in.
- Application: Tool-Free 7/16 in. Hex Shank Accessory Retention for Compatible Milwaukee Tools
- Compatibility: Always verify part compatibility using your tool's model and serial number before ordering
Includes
- (1) Milwaukee 42-66-0055 7/16 in. Hex Quick Lock Assembly
