Step drill bit is a drill bit that has the tip ground down to a different diameter.The transition between this ground diameter and the original diameter is either straight, to form a counter bore, or angled, to form a countersink.
HSS CO 4-32mm Step Drill Bit
15 steps:4mm 6mm 8mm 10mm 12mm 14mm 16mm 18mm 20mm 22mm 24mm 26mm 28mm 30mm 32mm
Flute:Sprial
Shank:Triangle
Usage:HSS CO 5% step drill bits are used for steel hole drilling,as carbon steels,stainless steel,mould steel and some other hard metals.
35 years history. DANYANG BMR TOOLS CO.,LTD is generated from Danyang Fifth Tools factory,which was founded at 1986s,famous power tools accessories manufacturer.For our customers can have a more complete and comprehensive supply chain service, at 2020s,BMR TOOLS integrated 7 affiliated entities founded BMR TOOL GROUP to provide one stop service of cutting tools.
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More than 1000 various of different products to provide one stop service.Mainly covering Solid Carbide End Mill,Twist Drills, Step Drills, Hole Saw,SDS Drills,Annular Cutter, Countersink,Tool Bits,Diamond Blades,TCT blades,Abrasive Disc. and some other cutting tools accessories.
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