INGCO AKDB0801 – 8 Pcs HSS Twist Drill Bits Set :

High speed steel twist drill bits are made with a hardened cutting tip and natural anti-corrosive properties. This product has a 0.4mm diameter shank. These bits feature single flute and two cutting edges for increased rigidity, reduced deflection and improved accuracy. Heat treated for toughness and durability. The bits are designed for drilling in iron with a rugged metal box. These bits are made from high speed steel, which gives them a 0.4mm diameter and allows them to be used on steel, masonry and concrete. They have a hardened cutting tip that helps prevent corrosion, and they feature a single flute with two cutting edges for increased rigidity, reduced deflection and improved accuracy. The bits are heat treated for toughness and durability, and they have a rugged metal box that makes them easy to transport. The bits are designed for precise drilling in iron.