Tru-maxx 05093539M Rectangle Polishing Stone 320 Grit

Product Description

The TRU-MAXX 05093539M is a rectangular aluminum oxide polishing stone designed for precision surface finishing and deburring work. At 320 grit, this stone falls in the extra fine range, making it well suited for final-pass honing, edge refinement, and light stock removal on metal, ceramic, and similar hard surfaces. The oil-filled construction helps maintain consistent cutting action and extends stone life during use. Measuring 6 inches in overall length, it provides a stable working surface for controlled hand lapping and finishing operations. Machinists, tool-and-die workers, and maintenance technicians keep this type of stone on hand for restoring precision fits and finishing machined surfaces.

This polishing stone is used in machine shops, maintenance facilities, and production environments where fine surface finishing is required. It is appropriate for deburring milled or ground components, smoothing tooling, and refining sealing surfaces on fixtures or mechanical assemblies. The rectangular shape allows access to flat surfaces, slots, and shoulders. At 320 grit extra fine, it is typically used as a finishing step after coarser abrasives have removed the bulk of material.

Key Features

• 320 grit extra fine aluminum oxide for final-pass surface finishing and light deburring
• Oil-filled stone construction supports consistent cutting action and extended service life
• Rectangular shape provides flat, controlled contact on machined surfaces and slots
• 6-inch overall length gives sufficient working area for hand lapping operations
• Aluminum oxide abrasive is compatible with a wide range of metalworking applications

Compatibility

Designed as an OEM-style replacement and standard consumable for use in hand lapping, honing, and surface finishing applications on metal and hard material workpieces.

Installation Notes

Apply a light coat of honing oil or mineral oil to the stone surface before use to improve cutting action and prevent glazing. Secure the workpiece or use a flat reference surface to maintain consistent contact angle during finishing passes. Clean the stone after each use to remove embedded swarf and metal particles. This type of abrasive stone is a hand tool consumable and does not require power-down procedures, but appropriate eye and hand protection should be worn during use.