New Hss Big Step Drill Bits Nitrided 10-45Mm Woodworking Power Tools 8 Steps Triangle Shank Spiral Groove Core Drill Bit

Features :
100% brand new and high quality.
HSS Spiral grooved Step Drill Bits Cut Tool Set.
Automatically deburr holes as you drill
High speed steel,durable.
Widely used to cut holes in a variety of material like steel, wood, thin iron,
aluminum alloy, insulation boards, PVC sheet,ect

Specification :
Color : as picture show
Material :High speed steel(Suitable for use in the hardness below 25 degrees of
workpiece, such as carbon steel, aluminum parts)
Surface treatment : Nitriding
Scop : thin iron plate,aluminum,insulation panels,PVC panels 5mm thickness within the timber. Tyep:10-45mm(8 Steps)10,15,20,25,30,35,40,45mm shank:Triangle Shank 12mm [NOTE]: Edge water cooling while working, which can effectively extend the service life of the drill bit, drilling rate 250--400 turn recommended
Package included : 1*10-45mm Hex Shank Step Drill Bit (packed safely bubble bag)