Product Description
M35 Four Spiral Flute Step Drill Bit Set 1/4"-3/4" （9 Sizes） , 1/4" Hex Shank Drill ， impact resistant M35 Cobalt Step Drill Bit, for stainless steel, wood, aluminum, plastic
Product Information
- ✅【M35 Cobalt Superhard High Speed Steel】: ISI M35/1.3243/SKH55/M35 steel is a kind of high speed steel containing cobalt, which has the characteristics of high wear resistance, high pressure resistance and sintering resistance.
- ✅【100 extra-long warranty period】：if you have any questions about the product, please contact us and we will answer you within 12 hours. If the hexagonal handle breaks, refund or replace for 100% .
- ✅【M35 step drill compatibility 】： step drills can quickly and smoothly drill holes of different diameters, such as stainless steel, aluminum, wood, plastic board (the board must be thinner than the height of the step drill)
- ✅【M35 four spiral groove】: step drill four cutting blade design. Faster, smoother cutting and easier separation of sawdust.
- ✅【9 Sizes :Including】:the bit contains 1/4 to 3/4 of the size. Common sizes 1/4”, 5/16”, 3/8”, 7/16”, 1/2”, 9/16”, 5/8”, 11/16”, 3/4”, total 9 sizes
- ✅【M35 high speed steel with cobalt】: high hardness (HRC67-70) , high red hardness (625 ° C, 4H, HRC63-65) , wear resistance, toughness and bending strength are not lower than ordinary high speed steel, M35 high speed steel is characterized by general cutting with CO, quenching hardness is 1200-1240c.
