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The TRU-MAXX TM-GPB72O is an aluminum oxide mounted point with a wheel tapered edge profile (shape code B72), designed for precision grinding, deburring, and surface blending on metal workpieces. It runs at up to 73,500 RPM and features a 1/8 inch shank diameter with a 1.5 inch shank length, making it compatible with standard rotary die grinders and flex-shaft tools. At 60 grit medium grade, it removes material efficiently while still leaving a workable surface finish. The burnt orange coloring is consistent with standard aluminum oxide abrasive identification. Machinists, toolroom technicians, and fabricators use this type of mounted point for internal bore work, slot cleanup, and contour grinding.
This mounted point is suited for shop and field grinding applications on ferrous and non-ferrous metals. It fits into die grinders and high-speed rotary tools equipped with a 1/8 inch collet. Common use cases include weld bead blending, cavity work in molds and dies, port matching, and general material removal in areas where larger abrasive wheels cannot reach. The compact head dimensions of 0.5 inches wide and 0.13 inches tall allow access to tight internal geometries.
Designed for use with rotary die grinders and flex-shaft machines equipped with a 1/8 inch collet. Suitable for general-purpose grinding of ferrous metals, hard alloys, and similar materials in toolroom and fabrication environments.
Mounted points must be installed in a properly sized collet and tightened securely before operation. Always verify that the tool spindle speed does not exceed the 73,500 RPM rating of this abrasive. Wear appropriate eye protection and ensure workpiece is clamped or secured before grinding. Inspect the mounted point for cracks or damage before each use and discard any point that shows signs of wear beyond the shank.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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