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The twist drill is a Tool used to drill round holes in the workpiece by rotating cutting with a relatively fixed axis. Because of its chip slot into a spiral shape and the shape of the twist named. Spiral grooves have 2, 3, or more grooves, but 2 grooves are the most common. The twist drill can be clamped on manual or electric hand-held drilling tools or on drilling machines, milling machines, lathes or even machining centers. The bit material is usually high speed tool steel or hard alloy. Standard twist drill: The twist drill consists of the shank, neck and working part
We have five different materials,HSS-CO8%,HSS-CO5%,HSS-M2,HSS-4341,HSS-4241.From left to right there are from high quality to low quality.
Twist Drill Bit,Glass Cutting Drill Bit,Long Metal Drill Bits,Electric Drill And Bits
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