Features: VALUE SCREW TAP SET: 6pcs drill bits of various types, meeting you different tool needs. STURDY: Designed for longtime service life. Constructed with high-speed steel, trains coating and heat process treatments, making the screw tap bit set more sturdy and durable to use even under high speed electric drill. WIDE SPIRALS FLUTES: Designed as wide spirals flutes, for smoother chip removal, no stuck during work, and easy to clean, making the workpiece smoother cut. MORE EFFICIENT WORK: No need for additional center drills or center punches Anti-wear: the back of the cone is on the faucet to prevent over-drilling due to thread damage WIDE APPLICATION: Can be used on light metal aluminum board, iron plate, ordinary stainless steel and other materials. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: High Speed Steel Package List: 1 x 3 In 1 Spirals Tap Hex Shank Drill Bit Set