Tru-maxx 01556232M Silicon Carbide Polishing Stone 320 Grit

Product Description

The TRU-MAXX 01556232M is a rectangle-shaped polishing stone made from silicon carbide abrasive material. It is used to deburr, polish, and refine metal surfaces, edges, and bores during precision finishing work. The stone measures 6 inches in overall length and carries a 320-grit rating, placing it in the extra fine grade category. Silicon carbide cuts faster than aluminum oxide on hard, brittle materials such as cast iron, ceramics, and carbide tooling. This stone is not oil-filled and does not require a lubricant reservoir, though a light honing oil can be applied manually. Machinists, tool and die makers, and maintenance technicians are the primary users.

This polishing stone is suited for bench work and hand-finishing applications in machine shops, manufacturing facilities, and maintenance environments. The rectangle profile allows flat surface contact on mold cavities, die faces, slots, and flat workpiece surfaces. At 320 grit extra fine, it is typically used in the final stages of a progressive honing or polishing sequence, after coarser stones have completed stock removal. It is also used to remove light burrs from machined edges and to blend surface marks prior to inspection or assembly.

Key Features

• Silicon carbide abrasive — fast cutting on hard and brittle materials including carbide and ceramics
• 320 grit extra fine grade for final-stage polishing and light deburring
• Rectangle shape provides broad, flat contact surface for die faces, slots, and flat stock
• 6-inch overall length gives adequate stroke length for bench and hand use
• Not oil-filled — compatible with manual application of honing oil or water-based coolant

Compatibility

Designed as a general-purpose hand polishing stone for bench finishing applications involving metal, ceramic, and carbide workpieces where a 320-grit extra fine silicon carbide abrasive is appropriate.

Installation Notes

No power tools or mechanical mounting are required for standard hand use. Secure the workpiece firmly before applying the stone to prevent movement during finishing strokes. A light honing oil or cutting fluid is recommended to float swarf away from the abrasive surface and extend stone life. Inspect the stone face periodically for glazing and dress with a diamond dresser or lapping plate if cutting action diminishes.