10pcs M35 HSS Cobalt Drill Bits CO Set Twist 1mm for Drilling on Stainless Steel

MATERIAL: Made of M35 material, includes 5% cobalt, high hardness, stable performance HIGH QUALITY: with high finish, high grinding precision , the blade is sharp and in use WIDE APPLICATION: ideal for drilling on stainless steel, cast iron, sheet metal, steel plate, Angle iron; widely used in the drilling of stainless steel plate, automobile spring steel and die steel NOTE: The titanium drill bits set can NOT be used in the impact drill Descriptions: These drill bits are made of M35 material, includes 5% cobalt, high hardness, stable performance. Cobalt steel extends cutting edge life and maintains cutting life after resharpening Ideal for drilling on stainless steel, cast iron, sheet metal, steel plate, Angle iron.