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: Enter Cat# and Select Service Parts. Also match Serial Number.
Milwaukee M8 x 1 mm Left-Hand T40 Torx Chuck Screw
Model Number: 05-88-0034
The Milwaukee 05-88-0034 is a genuine OEM M8 x 1 mm Left-Hand (LH) Thread Chuck Screw with a T40 Torx drive for use in compatible Milwaukee drills and driver-drills. The chuck screw passes through the center of the chuck and threads into a tapped hole in the spindle to retain the chuck on the tool. The left-hand thread is a critical design feature — because the drill spindle rotates clockwise during forward operation, a left-hand thread causes the chuck screw to tighten rather than loosen under the torque of normal forward drilling and driving. The T40 Torx drive provides superior torque transfer and reduced cam-out compared to Phillips or hex drives, allowing the chuck screw to be driven and removed without damaging the drive recess. A stripped, missing, or incorrect chuck screw that cannot retain the chuck on the spindle requires replacement to restore secure chuck mounting and prevent the chuck from detaching during use.
Using a genuine Milwaukee OEM chuck screw ensures the correct M8 x 1 mm left-hand thread pitch, T40 Torx drive, length, and head geometry for the spindle it serves. Installing a right-hand thread screw in place of this left-hand thread screw will cause it to loosen and back out during normal forward drilling operation. Always verify your catalog number and serial number on Milwaukee's website before ordering to confirm this is the correct chuck screw for your specific unit.
Features
- Genuine Milwaukee OEM M8 x 1 mm left-hand thread chuck screw for compatible Milwaukee drills
- Left-hand thread tightens — rather than loosens — during forward spindle rotation
- T40 Torx drive provides superior torque transfer and reduced cam-out during installation and removal
- Retains the chuck securely on the spindle during drilling and driving operation
- Must be replaced with a left-hand thread screw — a right-hand screw will back out during use
- Verify catalog number and serial number on Milwaukee's website before ordering
Specifications
- Thread Size: M8 x 1.0 mm
- Thread Direction: Left-Hand (LH)
- Drive: T40 Torx
- Type: Chuck Retention Screw
Includes
- (1) Milwaukee 05-88-0034 M8 x 1 mm Left-Hand T40 Torx Chuck Screw
