Built to last- Made from High Speed Steel, Shank Diameter: 13mm/ 0.51 inches; Drill Head length 82mm
Spiral Cutting Flute: 135 Split point tip and double fluted design for self-centering and deburring, Spiral groove helps to clear chips while drilling.
Application: suitable for below 25 hardness of the work piece, such as carbon steel, sheet iron, insulation boards, PVC boards, planks, and wood thickness below 5MM