Product Description
Milwaukee 5/8 in. Chuck Key with 5/16 in. Pilot
Model Number: 48-66-3120
The Milwaukee 48-66-3120 is a Chuck Key for Milwaukee 5/8 in. keyed drill chucks with a 5/16 in. pilot pin — a replacement tightening key for Milwaukee corded drills and drill presses equipped with the larger-capacity 5/8 in. keyed chuck used on heavier-duty drilling equipment. The 5/8 in. keyed chuck is the largest standard Milwaukee chuck specification — found on heavy-duty rotary hammer-style drills, larger drill presses, and the high-power corded drills used for the largest hole saws, large flat boring bits, and the maximum-capacity drilling applications. The 5/16 in. pilot pin engages the corresponding pilot hole in the chuck body to positively locate the key and maintain full bevel gear engagement with the chuck's rack teeth throughout tightening — the pilot prevents the key from cocking under the high torque of tightening this large chuck to the clamping force needed for secure bit retention in the most demanding drilling applications the 5/8 in. chuck serves.
Milwaukee builds the chuck key from quality steel for the demanding tightening cycles of professional use on large-capacity drilling equipment. The T-handle provides the grip and mechanical advantage for applying the substantial clamping torque needed for secure bit retention with the heavy large-diameter accessories used in 5/8 in. chuck drills. Always remove the chuck key completely before starting the drill — operating a drill with the chuck key inserted is a serious safety hazard that can cause severe injury when the key is ejected at speed on drill startup. Verify compatibility with your specific Milwaukee 5/8 in. chuck model before ordering to confirm the 5/16 in. pilot specification matches your chuck's pilot hole.
See Milwaukee's complete chuck key lineup for all available specifications for Milwaukee keyed drill chucks.
Features
- 5/16 in. pilot for positive chuck engagement on Milwaukee 5/8 in. keyed chucks
- 5/8 in. specification for largest-capacity Milwaukee chuck applications
- T-handle for substantial clamping torque needed for large-capacity drilling accessories
- Quality steel for demanding tightening cycles on heavy-duty drilling equipment
- Always remove from chuck before starting drill — serious safety hazard if left inserted
Specifications
- Chuck Capacity: 5/8 in.
- Pilot: 5/16 in.
- Type: Chuck Key with Pilot Pin
- Compatible Tools: Milwaukee Drills with Keyed 5/8 in. Chuck (5/16 in. pilot)
Includes
- (1) Milwaukee 48-66-3120 5/8 in. Chuck Key with 5/16 in. Pilot
