1MM-13MM Cobalt High Speed Steel Twist Drill Hole M35 Stainless Steel Tool Set The Whole Ground Metal Reamer Tools

[Product Name]:1-13MM stainless steel containing cobalt twist drill [Material]:HSS CO [Usage]:Stainless steel, steel, iron, aluminum and other metal pipes job openings. [Tools]:Hand drill, bench drill and other drilling machine tools. [Features]: 1. 135 ° double rear apex design, self-centering, without prior drilling. 2. Whole ground technology, high hardness, faster drilling rate. 3. M35 high-speed steel material, the overall Hardening and longer life. According to the suggestions of most of our friends, we have changed the sales mix. When buying, you can buy according to the picture display. If there is no combination you need, you can contact customer service. We will change the combination according to the needs of most customers.