3-13mm HSS Titanium Coated Stepped Power Tools Carbide Mini Metal Drill Bit

3-13mm HSS Titanium Coated Stepped Power Tools Carbide Mini Drill Bit Introduction: Step drill also known as multi-purpose drill with straight flute spiral groove single slot. White diamonds titanium drill colorful diamond black diamond.Handle a round handle triangular handle hex shank SDS shank. It has the functions of deburring chamfering and elliptic hole enlargement. Don t need to use center punch it is more durable and not easily broken compared with the ordinary twist drill. Specification: Material: High Speed Stee( Used for the hardness of the material which is below 25° like iron borad steel board PVC board Insulation board etc.) Surface: Titanium Plated Type: Straight Flute Handle: Hexagon Shank Scop: thin iron plate aluminum insulation panels PVC panels 4mm thickness within the timber. Size: 3-13MM 3 4 5 6 7 8 9 10 11 12 13mm 11 steps Features: High speed steel material more durable. Titanium coated to reduce friction and run cooler No need for a pilot hole can automatically deburr holes as you drill. Special step stucture can drill different size holes Working with water cooling can effectively extend the service life of bit drilling speed 250--400 recommended. Widely used to cut holes in a variety of material like steel wood thin iron aluminum alloy insulation boards PVC sheet ect. Package included: 1x 3-13MM Step Drill bit