3-13mm HSS Stepped Drill Power Tools Hex Shank Reaming Mini

Description

High speed steel material, more strong, long-lasting. 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. Widely used to cut holes in a variety of material like steel, wood, thin iron, aluminum alloy, insulation boards, PVC sheet,ect