ZFE 25mm Detail Abrasive Brush Wheel Burr Mixed Grit Coarse For Proxxon Dremel Rotary Tools Pack Of 14Pcs 14Pcs Mix Grit Abrasive Wheel Sets Gets into tight spaces-unique design allows sanding of contout shapes without damaging your ork piece. Suitable for the polishing of metal and non-metallic surface Compound Built-In-Abrasive impregnated within rubber wheel for grit to last life of accessory. No need for compund ! This product is suit for stainless steel, copper and iron The shank diameter:1/8" (3mm),Detail Abrasive Brush-Perfect for restoration projects-Handle Preperation work and the details with ease