Value Collection 890-6313 Polishing Stone Kit 20 Pc

Product Description

The VALUE COLLECTION 890-6313 is a 20-piece polishing stone kit combining aluminum oxide and silicon carbide abrasives in a range of grits — Very Fine, Extra Fine, and Super Fine. These rectangular abrasive stones are used to deburr, hone, and finish metal surfaces to close tolerances. The kit provides multiple grit stages in a single package, allowing technicians and machinists to progress through finishing steps without sourcing individual stones. At 0.66 pounds total, the kit is compact enough for bench use or transport to a job site. It is suited for surface preparation work on metal components across maintenance, fabrication, and tooling applications.

This polishing stone kit is used in metal finishing operations where consistent surface finish quality is required. Typical applications include honing valve seats, deburring machined edges, polishing mold cavities, and finishing tool and die components. The assortment of grit levels — Very Fine, Extra Fine, and Super Fine — allows progressive finishing passes on ferrous and non-ferrous metals. The rectangular stone shape fits flat surfaces and accessible recesses in machined parts. Both aluminum oxide and silicon carbide abrasive materials are represented, covering a range of hardness profiles suited to different base materials.

Key Features

• 20-piece assortment covering Very Fine, Extra Fine, and Super Fine grit levels
• Dual abrasive material types: aluminum oxide and silicon carbide
• Rectangular abrasive shape for flat surface and edge work
• Lightweight kit at 0.66 pounds for bench or field use
• Suited for progressive finishing without sourcing individual grit stones separately

Compatibility

Designed as a general-purpose polishing stone assortment for use on metal surfaces in machining, maintenance, and fabrication environments where hand-finishing is required.

Installation Notes

Polishing stones are used by machinists, tool and die makers, and maintenance technicians performing hand-finishing operations. Always secure the workpiece before applying the stone to avoid slipping and surface damage. Use appropriate cutting fluid or honing oil when working on hardened steel to extend stone life and improve surface finish quality. Inspect stones for cracking or uneven wear before each use and replace any damaged pieces.