Value Collection 4121304 Rectangle Polishing Stone 320 Grit

Product Description

The VALUE COLLECTION 4121304 is a silicon carbide rectangle polishing stone designed for fine surface finishing and deburring work on metal, ceramic, and composite components. Measuring 6 inches in overall length, 0.5 inches wide, and 0.25 inches thick, this stone delivers controlled material removal in tight or narrow areas where larger abrasives cannot reach. The 320 grit extra fine rating makes it well suited for final-stage honing, light stock removal, and achieving smooth surface finishes. Machinists, tool-and-die technicians, and maintenance trades keep this type of stone on hand for precision hand-finishing tasks.

This polishing stone is used in bench and hand-finishing applications across metalworking, maintenance, and toolroom environments. The slim rectangular profile fits grooves, keyways, mold cavities, and flat surfaces. The green silicon carbide composition cuts cleanly on hardened steels, cast iron, carbide tooling, and non-ferrous materials. It is not oil-filled, so a light application of honing oil or water-based coolant is typically used during service to flush swarf and extend stone life.

Key Features

• 320 grit extra fine grade for final-stage finishing and light deburring
• Silicon carbide abrasive cuts effectively on hardened steel, carbide, cast iron, and non-ferrous metals
• Slim rectangular profile fits keyways, slots, grooves, and flat work surfaces
• Not oil-filled, compatible with honing oil or water-based coolant
• Green color for easy grade identification in a toolroom setting

Compatibility

Designed as a general-purpose hand polishing stone for bench finishing, deburring, and honing applications in metalworking and maintenance trades.

Installation Notes

No power tools or mechanical installation are required. Apply a light coat of honing oil or appropriate coolant to the stone face before use to prevent loading and extend abrasive life. Keep the stone flat and use consistent hand pressure to avoid rounding edges or grooving the stone surface. Inspect the stone for chips or cracks before each use and replace if structural integrity is compromised.