Features Features： They can also be used to make a conical indentation in the end of a workpiece in which to mount a lathe center Made from high speeding steel, these center drill bits are of high hardness and good wear resistance There are total 5 pcs center bits in this set that can be used to drill holes in different sizes Widely used on lathe machines, these center drill bits can cut easily and remove chips smoothly Features: These center drill bits are used in metalworking to provide a starting hole for a larger-sized drill bit. They can also be used to make a conical indentation in the end of a workpiece in which to mount a lathe center. Made from high speeding steel, these center drill bits are of high hardness and good wear resistance. There are total 5 pcs center bits in this set that can be used to drill holes in different sizes. Widely used on lathe machines, these center drill bits can cut easily and remove chips smoothly. Specifications: Angle: 60° Cutting Edge Diameter 1.5mm 2mm 2.5mm 3mm 4mm Shank Diameter 5mm 5mm 6mm 8mm 10mm Length 35mm 41mm 45mm 51mm 60mm Quantity: 5pcs Package Includes: 5 x Center Drill Bits Package List