Features: T-shaped or 6 word shaped design, can one-hand operation, easy to use. Durable, and long service life. The Handle made of high quality bearing steel, the chuck made of alloy steel. Suitable for bicycle repair, assemble furniture, machinery manufacturing, ect. Specification: Material HSS Wrench Capacity :M6-M12 TAP Thread: M6x1.0 M7x1.0 M8x1.25 M10x1.50 M12x1.75 Include: 5 x Screw Tap 1 x Tap Wrench