Norton BearTex 2" SpeedLok TR Coarse Brown Surf Blend Disc Application Info: 09191 Bear-Tex 2" Surface Blend Speed-Lok (Roloc) TR Disc Coarse Bear-Tex Speed-Lok TR Surface Blending Discs Ideal for removing rust and oxides, blending out disc marks, and removing coatings and gasket residues from automotive surfaces. Thick, reinforced non-woven backing is impregnated with tough aluminum oxide abrasive. Advanced resin system will not smear.