Tru-maxx 66253291549 Mounted Point A26 60 Grit 1/4 in Shank

Product Description

The TRU-MAXX 66253291549 is an aluminum oxide mounted point designed for precision grinding, deburring, and surface finishing on metal and ferrous materials. Shaped to the A26 ball profile with a 60-grit medium grade abrasive, it removes material efficiently while leaving a controlled surface finish. The vitrified bond holds the aluminum oxide grain firmly during high-speed operation, supporting a maximum spindle speed of 48,980 RPM. The 0.625-inch head thickness provides adequate contact area for internal grinding, port work, and contour finishing tasks common in toolroom and maintenance grinding applications. The 0.25-inch diameter shank mounts directly into standard die grinders and rotary tools.

This mounted point is suited for internal bore grinding, weld blending, flash removal, and cavity work on steel, cast iron, and similar hard metals. The ball shape allows access to curved surfaces, recesses, and contoured profiles that flat or cylindrical wheels cannot reach. It is typically used by machinists, tool-and-die workers, maintenance technicians, and fabricators who need a consistent abrasive point for hand-held or bench-mounted rotary grinders. The medium grade makes it appropriate for general stock removal where a balance between cut rate and surface finish is required.

Key Features

• A26 ball point shape for access to curved recesses and internal contours
• 60-grit medium grade aluminum oxide abrasive for balanced stock removal and surface finish
• Vitrified bond construction for stable grain retention at high RPM
• Maximum rated speed of 48,980 RPM compatible with standard die grinders
• 0.25-inch shank diameter fits common collets and die grinder chucks
• 1.5-inch shank length provides clearance for recessed grinding applications

Compatibility

Designed for use with die grinders and rotary tools accepting a 0.25-inch shank mounted point. Verify that the tool spindle speed does not exceed the 48,980 RPM rating of this abrasive before use.

Installation Notes

Mounting and operation should be performed by a qualified machinist or maintenance technician familiar with abrasive wheel safety. Before mounting, confirm the die grinder or rotary tool is disconnected from power and the collet is clean and undamaged. Tighten the shank securely in the collet according to the tool manufacturer's specification and never exceed the marked maximum RPM. Inspect the mounted point for chips or cracks before each use and discard any damaged abrasive immediately.