The drill is a multi-flute staggered internal chip removal drill with indexable coated inserts. The cutter body is made of high-strength steel and has been quenched and tempered. It can be reused. The repeatability of the blade is high. Shock-absorbing block and guide block The small drill is made of solid carbide, and the guide block of the large drill is two types of hard alloys welded on the same guide seat. After the positioning surface of the guide seat is completed, the repeated positioning accuracy is good; it is suitable for high-speed drilling, and has the characteristics of high processing efficiency, convenient blade changing, and low tool consumption. It can process high-strength alloy steel, stainless steel and other materials.
