Description: This is an HSS step drill bit / pagoda drill bit, made of high-quality HSS steel and coated with titanium to reduce friction and heat.Suitable for cutting holes in various materials such as steel, brass, wood, plastic, etc.It can automatically deburr holes during drilling to keep the drill bit clean.The split tip design increases drilling speed.A must-have for families, DIY enthusiasts, or professionals. Description: This is an HSS step drill bit / pagoda drill bit, made of high-quality HSS steel and coated with titanium to reduce friction and heat.Suitable for cutting holes in various materials such as steel, brass, wood, plastic, etc.It can automatically deburr holes during drilling to keep the drill bit clean.The split tip design increases drilling speed.A must-have for families, DIY enthusiasts, or professionals. Perfect for light-duty tasks at home, such as drilling holes in plastic, aluminum, copper, and various types of sheet metal. Specifications: Material: High-Speed Steel Surface Treatment: Titanium-coated Silver Size: 6mm-60mm (12 sizes: 6 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, 55 mm, 60 mm)Package Included: 1 x HSS Step Drill Bit