The CIF Tungsten Carbide Drill Bit has Monobloc. Reinforced shank 3.17mm(1/8 ") and Dia 1.7mm. .
In stock from 0.3 mm to 3.17 mm Minimum drilling speed 20,000 rpm The smaller the diameter of the drill bit, the lower the speed will be. high Descent speed from 1.6 to 4 m / min Option, drill with ring on request
