Disc. Radial Bristle Blue x 2 Grit. 400

Get fast, superior results with radial bristle discs from 3M. Their unique, three-dimensional abrasive/flexible bristle design provides a uniform finish;use them for heavy cleaning, removing firescale and light oxide, pre-polishing, semi-finishing, blending, texturing and polishing. Discs provide the convenience of a pre-charged abrasive but don’t generate the heat associated with rubber wheels. The embedded cubitron mineral abrasive is much harder than most metals. • Use to remove oxides from jewelery without using messy compounds. • Ideal for cleaning and maintaining hard-to-reach areas and fine detail. • Recommended handpiece speed is 15,000rpm - maximum is 30,000rpm. Packages of 2 - Can be used as singles or multiples. Attached to Screw Style Mandrel 303 - not included but available for purchase. Diameter:20mm ;Grit: 400 (Sanding)