1Made of M35 material, includes 5% cobalt, high hardness, stable performance 2135-degree split-point tip starts drilling immediately with less force and eliminates 3Ideal for drilling on stainless steel, cast iron, sheet metal, steel plate, Angle iron 4With high surface finish, high grinding precision , the blade is sharp and durable in use 5It is widely used in the drilling of stainless steel plate, automobile spring steel and die steel
