Carbide Cup Burrs for Rounding Off Wire

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These concave carbide Cup Burrs with a 2.35mm (3/32") shank have tiny teeth like cutters for grinding, cutting, smoothing, deburring and rounding off all metals, bone, wood, plasti cs, resin, gemstones and fossils. Ideal for stone setters, model makers and for rounding off wire for jewellery-making purposes, or finishing prongs. Use either in a pin vice, rotary drill, micro motor, pendant drill, or flexible shaft. Helpful tip: The size of the cup burr you require should be just slightly larger than the wire you intend to file. The 0.9mm cup burr will file wire thinner than 22 gauge (0.6mm-0.9mm) The 1.0mm cup burr will file wire thinner than 20 gauge ( Show more