Descriptionlength : as picture showsis_customized : YesUse : Metal DrillingMaterial : High Speed SteelModel Number : DB0206J3TLXDTDIY Supplies : MetalworkingType : Core Drill BitBrand Name : xcanOrigin : Mainland ChinaCertification : CEName : step drill bit1Xcan 3/pcs 4-12/20/32mm HSS Spiral Grooved Center Drill Bit Solid Carbide Mini Drill Accessories Titanium Step Cone Drill BitFeatures:This is the New HSS Steel Large Step Cone Drill Titanium Bit Set Hole Cutter,which is made from high quality HSS steel, and with the Titanium coated to reduce friction and heatIt is very suitable for using to cut holes in a variety of materials including steel, brass, wood, plastic, etcSpecification:Material: HSS SteelFinish: TitaniumLength:4-12mm Length: Approx. 6.7cm/ 2.64"4-20mm Length: Approx. 7.4cm/ 2.91"4-32mm Length: Approx. 10.2cm/ 4.02"The 3 Cutters Come in the Following Sizes:4-32mm (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 2mm)4-20mm (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 14mm, 16mm, 18mm, 20mm)4-12mm (4mm, 6mm, 8mm, 10mm, 2mm)Package Included:1 x HSS Steel Drill Bit Set 4-12mm1 x HSS Steel Drill Bit Set 4-20mm1 x HSS Steel Drill Bit Set 4-32mm1