Tru-maxx 66253291888 B81 Mounted Point 60 Grit Aluminum Oxide

Product Description

The TRU-MAXX 66253291888 is an aluminum oxide mounted point in the B81 inverted cone cupped end geometry. It is designed for precision grinding, deburring, and surface finishing on metal workpieces using a die grinder or rotary tool. The abrasive is a medium-grade aluminum oxide at 60 grit, suitable for stock removal and blending on ferrous and non-ferrous metals. The 1/8 inch shank diameter fits standard collets on most die grinders and rotary tools. Maximum rated speed is 50,930 RPM. The pink aluminum oxide grain provides consistent cut and finish across a range of shop and maintenance applications.

This mounted point is used in metalworking, fabrication, maintenance, and repair operations where access to confined areas or complex internal profiles is required. The B81 shape with an inverted cone cupped end is well suited for working inside bores, cavities, and chamfers. It is commonly used by machinists, tool-and-die technicians, welders cleaning up weld joints, and maintenance mechanics working on equipment components. The 3/16 inch head thickness and 1-1/2 inch shank length provide reach into recessed areas without excessive flex.

Key Features

• B81 inverted cone cupped end shape for grinding in bores, recesses, and chamfers
• 60 grit medium-grade aluminum oxide abrasive for stock removal and surface blending
• 1/8 inch shank diameter fits standard die grinder and rotary tool collets
• Maximum rated speed of 50,930 RPM
• 1-1/2 inch shank length provides reach into confined areas
• Pink aluminum oxide grain for consistent performance on ferrous and non-ferrous metals

Compatibility

Designed for use with die grinders and rotary tools equipped with a 1/8 inch collet. Suitable for grinding and finishing ferrous metals, non-ferrous metals, and similar hard materials.

Installation Notes

Installed by machinists, fabricators, or maintenance mechanics using a die grinder or rotary tool. Secure the shank fully in the collet before operation and confirm the tool RPM does not exceed the 50,930 RPM rating marked on this mounted point. Wear appropriate eye protection and gloves. Inspect the abrasive head for cracks or chips before each use and discard if damaged.