Tru-maxx 66253291558 A4 Mounted Point 60 Grit 1/4 in Shank

Product Description

The TRU-MAXX 66253291558 is an aluminum oxide mounted point designed for precision grinding, deburring, and surface finishing on metal and similar hard materials. Shaped as an A4 tree profile, this mounted point fits a 1/4-inch shank and runs at a maximum rated speed of 28,550 RPM. The vitrified bond holds the 60-grit aluminum oxide abrasive securely, delivering consistent stock removal and a medium-grade finish. At 0.02 pounds, it is a lightweight consumable suited for use in die grinders, rotary tools, and pneumatic grinding handpieces used in fabrication, maintenance, and toolroom applications.

This mounted point is appropriate for internal grinding, port work, weld cleanup, and contour finishing in both shop and field settings. The A4 tree shape allows access to curved surfaces, recesses, and angled bores where flat or cylindrical wheels cannot reach. It is commonly used by machinists, maintenance mechanics, and metalworking tradespeople working on ferrous metals, castings, and hardened steel components. The pink aluminum oxide composition is well suited to general-purpose precision grinding where heat-sensitive materials or tight tolerances are involved.

Key Features

• A4 tree profile for grinding recesses, contoured bores, and irregular surfaces
• 60 grit medium grade for efficient stock removal with a semi-refined finish
• Aluminum oxide abrasive with vitrified bond for consistent, controlled cutting action
• 1/4-inch shank diameter compatible with standard die grinders and rotary tools
• Rated to 28,550 RPM for use with high-speed pneumatic and electric handpieces
• 1-1/4-inch head thickness and 1-1/2-inch shank length for reach into confined areas

Compatibility

Designed as an OEM-style replacement or standard consumable for die grinders, rotary tools, and pneumatic grinding handpieces accepting a 1/4-inch straight shank mounted point.

Installation Notes

Mounted points must be installed by personnel familiar with abrasive tooling safety and applicable ANSI B11 and OSHA grinding standards. Before mounting, confirm the tool spindle RPM does not exceed the 28,550 RPM rating marked on this point. Power down and disconnect the tool from its air or electrical supply before changing mounted points. Inspect the point for chips or cracks before each use and discard any damaged abrasive immediately.