Drillpro 3-13mm Titanuim Coated HSS Steel Step Drill Bit with Automatic Center Pin Punch

Description 3 13mm Titanuim Coated HSS Steel Step Drill Bits with Center Punch Hole Cutter Sets Automatic Center Pin Punch Specification Material High speed steelSurface treating Titanize coatingStep drill Shank HexagonSteps 11 steps 3 4 5 6 7 8 9 10 11 12 13mmPunch Total Length Approx 13cm 5 inch Features This is the New HSS Steel Large Step Cone Drill Titanium Bit Set Hole Cutter Made from high quality HSS steel and with the Titanium coated to reduce friction and heat It is very suitable for using to cut holes in a variety of materials including steel brass wood plastic etc Allows you to easily mark work using one hand prior to drilling which will prevent the drill from slipping Automatic spring loads then releases at top of cycle with force to create center punch No Hammer Needed Spring pressure can be adjusted by simply rotating the knurled top of the punch Package Included 1 x Step Drill Bits1 x Center Punch More Detials