5pcs HSS Step Cone Drill Bit Set High Speed Steel Hole Cutter

Description 5pcs HSS Step Cone Drill Bit Set High Speed Steel Hole CutterSpecification Material High Speed SteelQuantity 5pcs setSizeTotal Length Shank DiameterStep1 4 1 3 8 inchapprox 70x8mm10 Steps 1 4 3 8 1 2 5 8 3 4 7 8 1 1 1 8 1 1 4 1 3 8 3 16 7 8 inchapprox 70x8mm12 Steps 3 16 1 4 5 16 3 8 7 16 1 2 9 16 5 8 11 16 3 4 13 16 7 8 1 4 3 4 inchapprox 66x8mm9 Steps 1 4 5 16 3 8 7 16 1 2 9 16 5 8 11 16 3 4 1 8 1 2 inchapprox 70x6mm13 Steps 1 8 5 32 3 16 7 32 1 4 9 32 5 16 11 32 3 8 13 32 7 16 15 32 1 2 3 16 1 2 inchapprox 55x6mm6 Steps 3 16 1 4 5 16 3 8 7 16 1 2 Features This set replaces 50 individual drill bits The two flute design gives you faster smoother cutting 3 sided TRI FLAT shank will not slip in your drills chuck Cobalt coated for smoother cooler cutting SELF STARTING No need for a pilot hole Cobalt coated to reduce friction and run cooler Large bit has 3 sided shank and small bits have hex shank to prevent slip in drill chuck Automatically deburrs holes as you drill Apply to with a clamp or joint drilling machine suitable for drilling in the hardwood and wood floor machine screw for the wood screw Package Included 1 x 3 16 to 1 2 Step Drill1 x 1 8 to 1 2 Step Drill1 x 1 4 to 3 4 Step Drill1 x 3 16 to 7 8 Step Drill1 x 1 4 to 1 3 8 Step DrillNotice 1 Please allow a bit error due to manual measurement please make sure you do not mind before you bid 2 The color may have different as the differe