Note: Supporting the drive tool fixture concentricity is better, is strictly prohibited and different use of the fixture supporting the use of the handle must be clamped, folder is running. The operation is strictly prohibited shaking phenomenon, cutting direction should move from right to left, do not Too much force to prevent bounce, impact, handle length of more than 80MM should be slow down operation, to prevent chip flying, please use protective glasses. Double cut carbide burr suitable for soft materials such as aluminum, plastic, wood, etc. Single cut carbide burr suitable for hard materials such as iron, copper and steel Suitable for mold manufacturing, mechanical chamfering and deburring, welding and metal non-metal processing engraving, etc. High production efficiency, the processing efficiency is several times higher than file, nearly 10 times higher than small wheel stalk 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 HRA<85. 12mm L Carbide Burr Bit 12mm M Carbide Burr Bit 2Pcs 12mm F Carbide Burr Bit 5Pcs 8mm Carbide Burr Set 5Pcs 12mm Carbide Burr Set Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.3 out of 5 stars 45 4.8 out of 5 stars 11 4.0 out of 5 stars 35 4.4 out of 5 stars 103 4.3 out of 5 stars 207 Price $9.79$9.79 $9.79$9.79 $14.82$14.82 $16.59$16.59 $23.39$23.39 Shank Dia 1/4" 1/4" 1/4" 1/4" 1/4" Cutter Tip Dia 1/2" 1/2" 1/2" 5/16"(8mm) 1/2" Tooth Type Double Cut Double Cut Single Cut Double Cut Double Cut Package Quantity 1 1 2 5 5