Product Description
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Milwaukee 1/4-20 Socket Head Chuck Retaining Screw
Model Number: 06-75-3150
The Milwaukee 06-75-3150 is a genuine OEM 1/4-20 Socket Head Chuck Retaining Screw for use with Milwaukee Keyed Chuck 48-66-1355 and compatible Milwaukee drills. The chuck retaining screw passes through the center bore of the chuck and threads into a tapped hole in the spindle to retain the chuck on the tool — preventing the chuck from backing off the spindle during reverse drilling operations. The socket head profile features a precision-machined hex socket recess driven with an Allen key, providing controlled torque application in the confined bore of the chuck. This screw uses a left-hand thread — a critical design feature that causes the screw to tighten rather than loosen when the drill spindle rotates in forward direction during normal drilling operation. Installing a right-hand thread screw in this application will cause it to back out during use. A stripped, missing, or incorrect chuck retaining screw requires replacement to restore secure chuck mounting and safe drill operation.
Using a genuine Milwaukee OEM chuck retaining screw ensures the correct 1/4-20 left-hand thread specification, length, socket size, and head geometry for the chuck and spindle interface it serves. Non-OEM screws may not match the original left-hand thread direction or dimensional tolerances, creating a risk of chuck detachment during use. Always verify your catalog number and serial number on Milwaukee's website before ordering to confirm this is the correct retaining screw for your specific unit.
Features
- Genuine Milwaukee OEM 1/4-20 socket head chuck retaining screw for Milwaukee Keyed Chuck 48-66-1355
- Left-hand thread tightens — rather than loosens — during forward spindle rotation
- Must be replaced with a left-hand thread screw — a right-hand screw will back out during use
- Hex socket recess driven with an Allen key for precise torque in the chuck bore
- Verify catalog number and serial number on Milwaukee's website before ordering
Specifications
- Thread Size: 1/4-20
- Thread Direction: Left-Hand
- Head Style: Socket Head Cap Screw
- Drive: Hex Socket (Allen Key)
Works With
- Milwaukee Keyed Chuck 48-66-1355
Includes
- (1) Milwaukee 06-75-3150 1/4-20 Socket Head Chuck Retaining Screw
