Milwaukee 42-42-0590 Spindle Lock Button

Product Description

The MILWAUKEE 42-42-0590 is a genuine OEM spindle lock button designed for use in Milwaukee power tools. The spindle lock button engages the spindle shaft to prevent rotation during blade or accessory changes, allowing the user to loosen or tighten arbor hardware safely and efficiently. This small but critical component is a direct mechanical part found inside the tool housing. When the original button wears, cracks, or fails to engage properly, accessory changes become unsafe and tool function is compromised. Licensed technicians and repair shops rely on OEM replacement parts like this to restore tools to factory function.

This spindle lock button is intended for Milwaukee power tools that use a push-button spindle lock mechanism. It is commonly replaced during routine repair and refurbishment of angle grinders, circular saws, or similar Milwaukee rotary tools where the spindle lock assembly has become worn or damaged. This is a parts-and-accessories replacement component suited for bench-level tool repair performed by qualified service technicians.

Key Features

• Genuine OEM Milwaukee replacement part for reliable fit and function
• Engages spindle shaft to halt rotation during accessory changes
• Direct drop-in replacement restores factory-level spindle lock performance
• Designed for tools with push-button spindle lock assemblies

Compatibility

Designed as an OEM-style replacement spindle lock button for Milwaukee power tools equipped with a compatible spindle lock assembly. Consult the Milwaukee parts diagram for your specific tool model before ordering to confirm fitment.

Installation Notes

Spindle lock button replacement should be performed by a qualified tool repair technician. Disconnect the tool from all power sources and remove the battery pack before beginning any disassembly. Refer to the Milwaukee service manual or exploded parts diagram for your specific tool model to ensure correct component seating and housing reassembly. Do not operate the tool without confirming the spindle lock button moves freely and engages fully before returning the tool to service.

Technical Specifications

• Part Type: Spindle Lock Button

Standard Information

• Brand: MILWAUKEE
• Manufacturer Part Number: 42-42-0590