Description
Excellent cobalt drill bit made of HSS M35 steel and 5% cobalt giving it additional strength. Low sharpening loss and wear allow these drill bits to obtain high durability. The heads with two edges machined at 135° provide greater support. The tips are ground and with amber finish. Each of the cobalt drill bits in our range are manufactured under DIN340 extra-long size. The use of cutting drills is suitable for better performance. We recommend the driller or cooling oil.