Tru-maxx 01556299M Square Polishing Stone 320 Grit 6 in

Product Description

The TRU-MAXX 01556299M is a square silicon carbide polishing stone designed for precision surface finishing and deburring work. At 6 inches in overall length with a 1 inch by 1 inch cross-section, this stone delivers consistent contact across flat surfaces. The 320 grit rating places it in the extra fine category, making it well suited for final-stage honing, light stock removal, and surface refinement on ferrous and non-ferrous metals, ceramics, and plastics. It is not oil filled, so it can be used dry or with a light honing fluid depending on the application. Machinists, toolmakers, and maintenance technicians typically reach for this stone when a controlled, repeatable finish is needed on precision components.

This polishing stone is used in machine shops, maintenance facilities, and fabrication environments where surface finish quality matters. It is effective on mold and die work, tooling surfaces, valve faces, bearing seats, and similar precision metal parts. The square profile allows the user to access flat surfaces, slots, and recessed areas that rounded stones cannot reach. It is equally at home on a bench setup or used by hand during field maintenance tasks where a fine finishing pass is required before assembly or inspection.

Key Features

• Silicon carbide abrasive material for efficient cutting on hard metals, ceramics, and plastics
• 320 grit extra fine grade for final-stage finishing and light deburring
• Square profile provides access to flat surfaces, corners, and recessed features
• 6 inch overall length offers good working leverage and surface coverage
• 1 inch by 1 inch cross-section delivers uniform contact pressure
• Not oil filled — compatible with dry use or application-specific honing fluids

Compatibility

Designed as a general-purpose extra fine polishing stone suitable for use on precision metal components, tooling surfaces, mold and die work, and similar finishing applications across machining and maintenance trades.

Installation Notes

This stone is installed by hand or in a holder and requires no power tools or fasteners. Secure the workpiece before applying the stone to avoid inconsistent contact and uneven wear. When using a honing fluid, apply sparingly and keep the stone clean to maintain consistent cutting action. Inspect the stone surface regularly for glazing and dress it as needed to restore abrasive performance.