Product Features: Tungsten Carbide burrs can be processed cast iron, cast steel, carbon steel, alloy steel, stainless steel, copper, aluminum and other metals, and marble, jade, bone and other non-metallic. Processing hardness up to HRC58-60.It can replace the petiole small wheel without dust pollution, and process out a various of high-precision mold cavity. High production efficiency, the processing efficiency is several times higher than file, nearly 10 times higher than small wheel stalk.Suitable for woodworkers and enthusiasts who clean up welds or works with metal frequently. Easy to grasp and use. Unique tooth angle prevents chipping.Mainly used for grinding channel impeller, cleaning tubes, finishing mechanical internal surface, enlarging holes, processing and engraving metal non-metal materials. Can be used to finely process metal die cavity and mechanical chamfering, rounding, grooves, and clean up burrs of castings, flashings of forgings, welds of weldments. Double Cut Burrs: Suitable for soft material, such as wood, plastic, aluminum etc. Single Cut Burrs: Suitable for hard material, such as alloy steel, stainless steel, hardened steel etc. Tips: Mainly used on pneumatic or electric tools, the requirement rotating speed is: 4000-50000 rpm.Clamped down tightly and be sure the working direction is always counterclockwise during use.Prevent chips flying apart when working and better wear goggles. Keep your eyes and belongings away from the working bits. 1/8" Carbide Burrs 1/4" Carbide Burrs 1/8" Carbide Burrs 1/8" Carbide Burrs 1/8" Carbide Burrs 3/32" Carbide Burrs Add to Cart Add to Cart Buying Options Add to Cart Add to Cart Buying Options Customer Reviews 4.7 out of 5 stars 31 4.2 out of 5 stars 42 4.1 out of 5 stars 11 4.2 out of 5 stars 10 3.3 out of 5 stars 8 4.0 out of 5 stars 1 Price $7.29$7.29 $12.06$12.06 — no data $7.79$7.79 $8.45$8.45 — no data Shank Dia. 1/8" 1/4" 1/8" 1/8" 1/8" 3/32" Cutting Edge Dia. 3mm 6mm 6mm 3mm 6mm 6mm Cut Style Double Cut Double Cut Double Cut Double Cut Double Cut Double Cut Shape Ball Cylinder Cylinder Cone Cylindrical Radius End Flame