Product Description
Milwaukee Chuck Key Holder for 3/8 in. and 1/2 in. Chucks
Model Number: 48-66-4040
The Milwaukee 48-66-4040 is a Chuck Key Holder for 3/8 in. and 1/2 in. chuck keys — a retaining holder that attaches the chuck key to the drill's power cord, keeping the key immediately available at the drill at all times for fast bit changes without the risk of misplacement. The holder accepts both the 3/8 in. and 1/2 in. Milwaukee chuck key specifications, making it the versatile holder for crews that use both drill chuck sizes and want a single holder format that works across both sizes in the tool inventory. The cord-mounted clip keeps the chuck key attached to the drill during all movement, repositioning, and storage — the key is always exactly where the drill is, eliminating the search that occurs when the key is set down at a different location from the drill after each bit change.
Milwaukee builds the chuck key holder with the retention force and cord engagement needed to keep the key securely attached through the tool's normal use, cord handling, and storage cycles without the key working free during active drilling operations. The clip's design accommodates the cord diameters of Milwaukee 3/8 in. and 1/2 in. drill power cords for secure fit without damaging cord insulation. Verify compatibility with your specific Milwaukee drill and chuck key before ordering to confirm the holder's retention geometry matches the chuck key pilot dimension being stored — Milwaukee offers separate 1/4 in. pilot holders (48-66-4080) and this combined 3/8 in. and 1/2 in. holder for different chuck key formats.
See Milwaukee's complete chuck key and chuck accessory lineup for all available holders and keys for Milwaukee keyed drill chucks.
Features
- Fits both 3/8 in. and 1/2 in. chuck keys — one holder covers both drill chuck sizes
- Clips chuck key to drill power cord for always-available immediate access
- Eliminates chuck key loss and search time that interrupts production drilling
- Secure cord clip holds through normal use, cord handling, and storage
- Verify chuck key compatibility before ordering
Specifications
- Type: Chuck Key Cord Holder
- Compatible Key Sizes: 3/8 in. and 1/2 in. Chuck Keys
- Application: Retaining Chuck Key on Drill Power Cord for Immediate Access
Includes
- (1) Milwaukee 48-66-4040 Chuck Key Holder for 3/8 in. and 1/2 in. Chucks
