Hex Shank Twist Drill Bit Set Wood Metal Hole Cutter Core Drilling Tool Cobalt Drill Bits 2/3/4/5/6/7/8/9/10/12mm (Color : /, Size : 15pcs Set)

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Material: High Speed Steel ; Package includes: as picture show Special plug hex shank of quick change drill bit is an upgrade version, it shows excellent performace than normal pre ssed hex shank, avoid drills peeling from the hex shank, effectively keep hex shank locked with drill bits during impact drilling process. Fully ground spiral flute discharge scraps quickly reduce friction and heat therefore provides a faster cooler and more efficient drilling performance; 135° Split Point with straight shank prevents slippage and makes drilling stable and precise. No center punch is needed. 1/4" hex shank base well fits into majority pistol drill and drill press, more easily and securely installation without slippage and shedding. Small Drill bits for wood, plastic, steel plate( 5mm) , aluminum alloy and other soft metals. Ideal choice for DIY projects, household maintenance and repair, NOT for glass, ceramic or concrete drilling. Show more