1Pcs 2mm-22mmx100mm HRC65 Solid Carbide Drill Bits Set, Spiral Flute Twist Drill Bit for Hard Alloy Stainless Tool(4.2mm 1pc)

Welcome to my store！Drill BitsFlute Length 60mmOverall Length 100mmSolid carbide tools offer long tool life and faster cutting speeds than other substrates, but are more brittle and must be used with rigid toolholding systems. Round shanks allow use with a wide variety of toolholding systems. When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging.Drilling, or hole making, is the most common metalworking operation in the world. Twist drill bits are the most common type of drill bit used. Twist drill bits are commonly used to drill holes with hand-operated drills, standalone drill presses, or lathes. The flutes of the drill bit act a passageway for chip extraction from the hole and for coola

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