Metal cone drill bit triangular / hex Shank hole cutter triangular 4-22

Description: High speed steel ensures durability Triangular and hex shank cone drill metal hole cutter spiral drill bit The ladder of its unique structure a bit can open a variety of specifications of aperture Do not need to use center punch compared with the ordinary twist drill is not easy to be broken Use of tools: drill bench drill Work while water cooling can effectively extend the service life of drill Specification: Material: High Speed Steel HSS Steel Triangular Shank Drilling/Step: 4-32/15 107mm / 4.21in Triangular Shank Drilling/Step: 5-23/10 82mm / 3.22in Triangular Shank Drilling/Step: 4-22/10 82mm / 3.22in Triangular Shank Drilling/Step: 4-12/9 77mm / 3.03in Hex Shank Drilling/Step: 4-32/15 107mm / 4.21in Hex Shank Drilling/Step: 5-23/10 82mm / 3.22in Hex Shank Drilling/Step: 4-22/10 82mm / 3.22in Hex Shank Drilling/Step: 4-12/9 77mm / 3.03in Package Includes: 1 x Note: Please allow 1-3mm error due to manual measurement make sure that you do not mind before you bid. Due to the different monitor and light effect the actual color may be slightly different from the picture color.