Tru-maxx 51031631M Rectangle Polishing Stone 120 Grit

Product Description

The TRU-MAXX 51031631M is a rectangular aluminum oxide polishing stone designed for fine surface finishing and deburring work on metal, tooling, and machined components. At 120 grit with a Fine grade, it delivers controlled stock removal and a consistent surface finish on workpiece edges, bores, and flat faces. The stone is oil-filled, which helps suspend swarf, extend stone life, and maintain a consistent cutting action throughout use. With an overall length of 6 inches and a 1 inch by 1 inch cross-section, it is sized for bench use and hand-held finishing operations. Machinists, tool-and-die workers, and maintenance technicians are the typical users of this type of stone.

This polishing stone is suited for use in machine shops, maintenance departments, and toolroom environments where precision hand-finishing is required. It is commonly used to remove burrs from milled or ground surfaces, polish bearing fits, clean up tool edges, and prepare surfaces before inspection or assembly. The rectangular profile allows flat face contact on plane surfaces as well as edge work along slots and shoulders. It is appropriate for both production and low-volume maintenance applications.

Key Features

• Aluminum oxide abrasive construction for reliable cutting action on ferrous and non-ferrous metals
• 120 grit Fine grade for controlled material removal and smooth surface finish
• Oil-filled composition helps carry away swarf and prolongs stone service life
• 6 inch overall length provides adequate working surface for bench and hand-finishing tasks
• 1 inch by 1 inch cross-section suits flat face, edge, and slot finishing applications
• Rectangular shape maintains full contact on flat and square workpiece surfaces

Compatibility

Designed as a general-purpose hand polishing and deburring stone suitable for use on metal workpieces in toolroom, machining, and maintenance applications where a Fine 120 grit aluminum oxide abrasive is appropriate.

Installation Notes

This stone is a hand-held abrasive tool and does not require mechanical installation. Secure the workpiece in a vise or fixture before use to maintain control during finishing. Apply a light honing oil or mineral oil to the stone surface prior to and during use to optimize cutting performance and protect the stone. Replace the stone when the abrasive surface becomes glazed or loaded and no longer cuts effectively.