6Pcs HSS Blue Coated Step Drill Bit Set with Center Punch - High Speed Steel Hole Cutter for Metal, Wood, Plastic - Perfect for DIY Projects, Home Repair & Professional Drilling Work (Model HT2887)

Before Use, Check the Power and Stiffness of the Machine Tool to Ensure That the Required Diameter of the Step Drill bit Can Be Used on the Machine ToolFeatures:1.This is the New HSS Steel Large Step Cone Drill T-itanium Bit Set Hole Cutter.2.Which is made from high quality HSS steel,and with the T-itanium coated to reduce friction and heat.3.It is very suitable for using to cut holes in a variety of materials including steel,brass,wood,plastic,etc.Specification:Type:Core Drill BitMaterail:High Speed SteelCoating:Blue CoatedSize x Total Length x Shank Dia x Shank Length3/16-1/2 x Approx 57mm x Approx 6mm x Approx 24mm1/8-1/2 x Approx 77mm x Approx 6mm x Approx 24mm1/4-3/4 x Approx 73mm x Approx 9mm x Approx 24mm3/16-7/8 x Approx 77mm x Approx 9mm x Approx 24mm1/4-1-3/8 x Approx 76mm x Approx 9mm x Approx 24mmSize Including:3/16-1/2: 3/16',1/4',5/16',3/8',7/16',1/2'1/8-1/2: 1/8',5/32',3/16',7/32',1/4',9/32',5/16',11/32',3/8',13/32',7/16',15/32',1/2'1/4-3/4: 1/4',5/16',3/8',7/16',1/2',9/16',5/8',11/16',3/4'3/16-7/8: 3/16',1/4',5/16',3/8',7/16',1/2',9/16',5/8',11/16',3/4',13/16',7/8'1/4-1-3/8: 1/4',3/8',1/2',5/8',3/4',7/8',1',1-1/8',1-1/4',1-3/8'NotePlease allow 1-3mm error due to manual measurement.Due to the difference between different monitors,the picture may not reflect the actual color of the item.Package Including:1 Box (5pcs)Step Drill Bit Set