3-13mm Hex Shank Titanium Coated Step Drill Bit |
Features:
These Step Drill Bits Are Ideal For Variety Of Materials From Metal, Plastic, Fiberglass To Wood,they Also Help To Enlarge Existing Holes 1. The ladder of its unique structure, a bit can open a variety of specifications of aperture. 2. Do not need to use center punch, compared with the ordinary twist drill is not easy to be broken. 3.The use of tools: drill, bench drill.Work while water cooling, can effectively extend the service life of drill bit, 4. Material: high-speed steel 5.Sizes:3-13mm:3,4,5,6,7,8,9,10,11,12,13mm Packing list:Package include:1X Hex Titanium Step Drill