Product features：This machine is a special equipment, suitable for grinding flat end milling cutters with 2, 3 and 4 edges and fried dough twist drills, made of hard alloy and high-speed steel. The power supply of this machine is standard 220V lighting power, and it is strictly prohibited to use 380V power supply. According to the diameter range of milling cutter and drill bit, the machine models are divided into TW-1213 and TW-1613. TW-1213 is applicable to 03-12mm milling cutter, Ф 3-13mm drill bit, TW-1613 for Ф 3-16mm milling cutter, Ф 3-13mm drill bit. Grinding wheel description: This machine is equipped with two kinds of grinding wheels, SDC grinding wheel is dedicated to carbide tools, CBN grinding wheel is dedicated to high-speed steel tools. In addition, grinding wheels with different grain sizes can be provided. The larger the grain size is, the better the grinding finish is. The smaller the grain size is, the better the abrasion resistance of the grinding wheel is. Please select the grinding wheel with appropriate grain size according to your own needs.