Ocut Twist Drill Bit Straight Shank Cobalt-Containing Stainless Steel Special Drilling Super-Hard Rotor Metal Iron Aluminum Alloy Drill Bit 1-20mm

Ocut Twist Drill Bit Straight Shank Cobalt-Containing Stainless Steel Special Drilling Super-Hard Rotor Metal Iron Aluminum Alloy Drill Bit 1-20mm

Produktname: Cobalt-containing twist drill
Material: M35 high speed steel
Product specifications: M1-M13
Standard: Metric
Surface treatment: no treatment
Merkmale: high hardness, wear resistance and high temperature
Product usage: stainless steel, mold steel, aluminum, iron, copper, usw…