Feature: 1. 6542 high‑speed steel material, higher hardness and more , can even be used for drilling 2mm 304 steel plates.2. Adopt titaniums coating, anti‑rust and anti‑corrsion, ensures long service life, to use. 3. Complete hole drilling, tapping and deburring/countersinking in one with power drill – saves labor, time. 4. Applicable to some types of carbon steel and ordinary steel, copper and aluminum alloy drilling hole. 5. Including 10pcs screw tap, practical and economic , which can completely meet your needs. Specification: Condition: Brand New Package List: 10 x Screw Tap |