Milwaukee 48-03-1005 Threaded Arbor Adapter M10-1.25 to 5/8-11

Product Description

The MILWAUKEE 48-03-1005 is a screw-on threaded arbor adapter designed to increase an M10-1.25 angle grinder spindle thread to the larger 5/8-11 accessory thread standard. This adapter allows a grinder with the smaller metric arbor to accept wire cups, wire wheels, and other accessories that require the 5/8-11 thread. It is a single-piece steel adapter sold individually and is made in the USA. The compact form factor keeps the adapter lightweight at 0.05 pounds, making it a practical addition to any angle grinder kit where thread compatibility is needed.

This adapter is used primarily in metalworking, fabrication, and maintenance applications where an angle grinder equipped with an M10-1.25 threaded spindle must accept wire cup brushes or wire wheels sized for the 5/8-11 thread. It is a standard fitment solution commonly encountered in industrial and commercial job-site settings. Licensed tradespeople including pipefitters, ironworkers, welders, and electricians frequently use this type of adapter when switching between grinder accessories across different brands and thread standards.

Key Features

• Converts M10-1.25 angle grinder arbor thread to the larger 5/8-11 accessory thread
• Compatible with wire cups and wire wheels requiring 5/8-11 thread
• Fits most angle grinders equipped with an M10-1.25 threaded spindle
• Made in the USA
• Sold individually as a single adapter unit

Compatibility

Designed for use with most angle grinders featuring an M10-1.25 threaded arbor spindle where 5/8-11 threaded accessories such as wire cups and wire wheels are required.

Installation Notes

Always power down and disconnect the angle grinder from its power source before installing or removing any spindle adapter. Verify the adapter is threaded fully and securely onto the grinder spindle before attaching any accessory. Follow the grinder and accessory manufacturer guidelines for maximum RPM ratings to ensure the accessory does not exceed the rated speed of the tool. Installation does not require special tools beyond the grinder's included spindle lock.

Technical Specifications

• Thread Input: M10-1.25
• Thread Output: 5/8-11
• Weight: 0.05 pounds
• Length: 2.75 inches
• Width: 5.85 inches
• Height: 0.55 inches
• Country of Origin: USA
• Sold As: Each
• UPC: 0045242086160

Standard Information

• Brand: MILWAUKEE
• Manufacturer Part Number: 48-03-1005