Tru-maxx 05092531M Rectangle Polishing Stone 320 Grit

Product Description

The TRU-MAXX 05092531M is a rectangle-shaped aluminum oxide polishing stone used for fine surface finishing, deburring, and edge honing on metal and other hard materials. At 320 grit, this stone falls in the extra fine range, making it suitable for final-stage finishing passes where a smooth, refined surface is required. The aluminum oxide composition provides consistent cutting action and long service life across a range of workpiece materials. Machinists, tool and die makers, and maintenance technicians typically use this type of stone as part of a bench or hand-finishing operation.

This polishing stone is suited for shop-floor and bench applications where hand lapping, mold polishing, or precision edge work is required. The rectangular profile allows for controlled contact on flat surfaces, slots, and mating faces. Its compact size and non-oil-filled construction make it easy to use dry or with a light honing fluid. It is commonly found in machine shops, tool rooms, and maintenance departments handling precision metalwork.

Key Features

• 320 grit extra fine aluminum oxide construction for final-stage surface finishing
• Rectangular profile provides controlled contact on flat and recessed surfaces
• Non-oil-filled stone compatible with dry use or light honing fluid application
• 6-inch overall length suits bench and hand-held finishing operations
• Aluminum oxide abrasive delivers consistent stock removal and long stone life

Compatibility

Designed as a general-purpose hand polishing stone for bench finishing, deburring, and honing applications on metal and similarly hard workpiece materials.

Installation Notes

This stone is a hand-finishing tool and requires no power tools or mechanical installation. Secure the workpiece firmly before use to maintain consistent contact pressure. When used with a honing fluid or light oil, apply sparingly to the stone surface to float away swarf and extend abrasive life. Replace the stone when the abrasive surface becomes glazed or no longer cuts efficiently.