Tru-maxx 66253291895 Mounted Point 60 Grit B90 Ball

Product Description

The TRU-MAXX 66253291895 is an aluminum oxide mounted point designed for precision grinding, deburring, and surface finishing on metal and other hard materials. This ball-shaped point (shape code B90) features a 60-grit, medium-grade abrasive that removes material efficiently while maintaining control in confined areas. The pink aluminum oxide grain is well-suited for ferrous metals and general-purpose tool room work. With a 0.125-inch shank diameter and a rated maximum speed of 34,500 RPM, it is sized for use in standard die grinders, rotary tools, and high-speed spindle machines operated by machinists, tool-and-die workers, and maintenance technicians.

This mounted point is used in applications requiring access to tight cavities, ports, bores, and complex contours that larger abrasive tools cannot reach. Common applications include weld cleanup, mold and die finishing, porting, and deburring of cast or machined components. The ball shape allows contact with curved and concave surfaces. It is appropriate for both production shop and bench work environments where a small, consistent abrasive point is required for detail grinding on metal workpieces.

Key Features

• Ball shape (B90) contacts curved, concave, and recessed surfaces
• 60-grit medium-grade aluminum oxide abrasive for efficient stock removal
• Rated to 34,500 RPM for use with standard die grinders and rotary tools
• 0.125-inch shank diameter fits common collet sizes on rotary and die grinding equipment
• Pink aluminum oxide grain suited for ferrous metal grinding and general tool room use
• Compact 0.5-inch head thickness for access to tight areas and fine detail work

Compatibility

Designed as a standard mounted point for die grinders, rotary tools, and high-speed spindle machines accepting a 0.125-inch shank. Verify spindle RPM does not exceed the 34,500 RPM rating of this abrasive point before use.

Installation Notes

Mounting and removal should be performed with the tool fully powered off and unplugged or air supply disconnected. Insert the shank fully into the collet and tighten securely before operation. Never operate the mounted point above its rated maximum speed of 34,500 RPM. Appropriate eye protection and, where applicable, face shielding should be worn in accordance with ANSI B11 and shop safety requirements.