MEMKEY 10pcs M35 High Speed Steel Cobalt Gold Twist Drill Bit Set for Drilling Stainless Steel, Hard Steels, Cast Iron, Copper, Aluminum, Wood and Plastic,

Professional quality item with a wide range of applications: M35 high speed steel drill bits with 5% cobalt for drilling stainless steel and reinforced steel materials. They can also be used for drilling metals and other materials such as cast iron, copper, high temperature alloys, titanium alloys, aluminum, hard plastics and woods, etc. Premium materials: M35 high speed steel with 5% cobalt. Durable and solid for longer service life. Drill bits are suitable for drilling heavy-duty metals, including stainless steels, Cr-Ni and acid-resistant special steels. Materials: M35 high speed steel with 5% cobalt. Durable and solid for longer service life. Drill bit suitable for drilling tough metals including stainless steels, Cr-Ni and acid-resistant special steels. Heat resistant: Twist drill bit made of high speed steel with cobalt For maximum efficiency, the speed should be 1,500 rpm or higher. The straight shank provides a firm, precise grip and is compatible with standard chucks and