Spindle Lock for TMG170/170K Mini Grinder (models 4, 5, 6, 7) — No name

Spindle lock designed for use with TMG170 and TMG170K mini grinders (compatible with listed 4, 5, 6 and 7 variants). This replacement part secures the grinder spindle to allow safe and convenient wheel or accessory changes. It is intended as a maintenance and repair component for compact angle grinders and helps reduce downtime during accessory replacement.

Advantages

The spindle lock provides a positive engagement with the grinder spindle to stabilise the tool when changing discs or accessories, reducing the risk of slippage. Its compact construction matches the form factor of mini grinders, offering straightforward installation and removal without modifying the tool. The part is designed to withstand the mechanical load typical for accessory changes on compact grinders and supports routine maintenance tasks.

Suitable for (tasks / use cases)

• Replacing grinding, cutting or polishing wheels on TMG170 and TMG170K mini grinders
• Routine maintenance and repair of compact angle grinders
• Workshop settings where quick accessory changes are required
• Home use for small metalworking, sharpening, or cutting tasks

Key specifications

• Compatibility: Designed for TMG170 and TMG170K mini grinder models (variants 4, 5, 6 and 7)
• Function: Spindle locking mechanism for accessory and wheel changes
• Construction: Compact replacement part suitable for small angle grinders
• Intended use: Maintenance and repair of mini grinders to reduce downtime

How to use

Before replacing accessories, disconnect the grinder from its power source. Engage the spindle lock according to the grinder’s method for locking the spindle—typically by pressing or turning the lock until the spindle stops rotating. While the spindle is locked, use the appropriate wrench or nut tool to loosen and remove the accessory mounting flange, replace the disc or accessory, then re-tighten the flange while the spindle lock holds the spindle stationary. Release the lock and verify that the accessory is securely fitted and rotates freely without wobble before resuming work.

Usage recommendations

Use only accessories and mounting hardware rated for the grinder’s speed and disc diameter. Inspect the spindle lock regularly for wear or damage and replace it if engagement becomes unreliable. Follow the grinder manufacturer’s safety guidelines for accessory changes, and always wear appropriate personal protective equipment when handling and operating the tool.