Tru-maxx 51031722M Rectangle Polishing Stone 400 Grit 6 in

Product Description

The TRU-MAXX 51031722M is a rectangle polishing stone made from aluminum oxide abrasive material. It measures 6 inches in overall length and delivers a 400-grit, super-fine finish suited for precision deburring, honing, and surface polishing on metal, plastic, and composite workpieces. The stone is oil-filled, which helps flush swarf from the abrasive surface during use and extends working life. Machinists, toolmakers, and maintenance technicians reach for this type of stone when a fine, controlled finish is required on edges, bores, flat surfaces, or tool faces.

This polishing stone fits into general-purpose bench work and hand-finishing applications across manufacturing, fabrication, and maintenance environments. The rectangular profile allows flat-surface contact on workpiece faces and edges. At 400 grit, it is appropriate for final polishing passes after coarser stock removal has already been completed. It is compact enough for portable field use and benchtop finishing operations alike.

Key Features

• 400-grit super-fine aluminum oxide abrasive for controlled finish polishing
• Oil-filled construction helps lubricate the cutting surface and clear swarf during use
• Rectangular shape provides consistent flat contact on edges and surfaces
• 6-inch overall length offers a practical working reach for hand-held use
• Suitable for metal, plastic, and composite workpiece materials

Compatibility

Designed as a general-purpose hand polishing stone for bench and field finishing applications where a super-fine, 400-grit aluminum oxide abrasive is required.

Installation Notes

Apply a light coat of honing oil or mineral oil to the stone surface before use to aid cutting action and prevent glazing. Work the stone in consistent, even strokes along the workpiece to avoid uneven wear on the abrasive face. Clean the stone after each use to remove embedded swarf and metal particles. No power tools or fasteners are required for use.