ITEM NAME:1Pc 3-13Mm Titanium Coated Hss Steel Step Drill Bits +1Pc Center Punch Dril F4Y1 1Pc 3-13Mm Titanium Coated Hss Steel Step Drill Bits +1Pc Center Punch Dril F4Y1 Use:Metal Drilling Type:Core Drill Bit DIY Supplies:Metalworking Name:step drill bit This is the New Large Step Cone Drill Titanium Bit Set Hole Cutter, which is made from high quality Material, 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 colour:Gold Material:steel Package Contents: 1 * Drill Bit Set 3-13mm 1 * Center Punch