Tru-maxx 51031938M Square Polishing Stone 320 Grit 6 in

Product Description

The TRU-MAXX 51031938M is a square aluminum oxide polishing stone used for precision deburring, honing, and surface finishing of metal workpieces. It measures 6 inches in overall length with a 1-inch square cross-section and carries a 320 grit, extra fine grade for producing smooth, refined surface finishes. This stone is oil-filled, which helps carry away swarf and extend working life during hand-stoning operations. It is a staple tool in machine shops, toolrooms, and maintenance environments where controlled material removal and surface blending are required.

This polishing stone is suited for finishing flat and contoured surfaces on ferrous and non-ferrous metals. Machinists, tool-and-die makers, and maintenance technicians use extra fine stones like this one in the final stages of deburring, removing tool marks, and polishing mold or die surfaces. The square profile provides four working edges and a flat face, giving the user multiple contact orientations for tight slots, flat pads, and open-face grinding applications.

Key Features

• Aluminum oxide abrasive material suitable for finishing steel, cast iron, and non-ferrous metals
• 320 grit extra fine grade for smooth, controlled surface refinement
• Oil-filled construction helps flush swarf and maintain cutting action
• Square profile provides four working edges and a flat working face
• 6-inch overall length with 1-inch square cross-section for hand-held use

Compatibility

Designed as a general-purpose hand polishing stone for use in machine shop, toolroom, and industrial maintenance applications requiring extra fine surface finishing on metal components.

Installation Notes

This stone is a hand-held abrasive tool and does not require mechanical mounting. Apply a light coat of honing oil or mineral oil to the working surface before use to improve cutting action and prevent loading. Work in consistent, controlled strokes and clean the stone periodically to remove embedded swarf. No power tools are required for standard hand-stoning operations.