Description Doersupp 15pcs 1 5 10mm Twist Drill Bits Titanium Coated HSS Twist DrillSpecification Material HSSCoated Titanium Quantity 15pcsSizeTool lengthOverall length1 5mm18mm40mm2mm24mm49mm2 5mm30mm57mm3mm33mm61mm3 5mm39mm68mm4mm43mm75mm4 5mm47mm80mm5mm52mm 83mm5 5mm57mm93mm6mm57mm93mm6 5mm62mm 98mm7mm69mm101mm8mm75mm117mm9mm81mm125mm10mm87mm133mm Features Difficult to machine the workpiece can be processed stainless steel tool steel through heat treatment high speed steel to obtain high hardness high wear resistance and high toughness Whole by grinding forming accurate size high life the efficacy of long Can be used radial drill bench drill or hand drill chuck for drilling operations Suitable For luminum wood malleable and deep hole drilling positioning holes iron Package Included 15 x twist drill bit More Details