- ✅【M2 HSS Cobalt Layered Drill Bits】M2 Cobalt Coated, each metal countersunk drill bit is made of high quality M2 HSS material, this countersunk drill bit set is excellent in heat, corrosion and rust resistance to reduce friction and run cooler.
- ✅【Clear Sizes】Meticulously crafted drills with very high visibility numbers available in very common 1/4″, 3/8″, 1/2″, 5/8″ and 3/4″ drill sizes.
- ✅【Five-blade design】Each countersunk drill adopts five-blade blade design, which can reduce vibration and prolong life, achieve smoother drilling, with 1/4″ metal hex.
- ✅【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 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)
