HSS Step Drill Bit Metal 5-35mm Professional Titanium Cone Drill Bit Step Drill Bit with Case for Wood Plastic Metal

High-quality materials: Our step drill bit is made of high-speed steel and provides fast, comfortable and friction-free drilling; a small case for easy storage and carrying. Titanium coating: The peeling drill bit with titanium coating provides good resistance to corrosion, heat and rust; reduces friction and heat; for a longer service life even at extreme temperatures. 13 drilling sizes: For different hole sizes, you only need one step drill bit; 13 sizes are on the step drill bit for your convenience: 5 mm, 7 mm, 10 mm, 12 mm, 15 mm, 17 mm, 20 mm, 22 mm, 25 mm, 27 mm, 30 mm, 32 mm, 35 mm. Fast drilling: The double-blade design provides faster and friction-free cutting. Please note that during the work of the step drill bit, pour water to cool the step drill bit; The service life of the HSS step drill bit will be effectively extended. Material: The cone drill bit is suitable for household repairs and light work such as drilling holes in plastic, copper, aluminum and many other types of sheet metal; but not suitable for stainless steel. Features: The HSS step drill bit made of high-speed steel and with double cutting blade provides faster, comfortable and friction-free drilling. With titanium coating, the step drill offers good resistance to corrosion, heat and rust. Even at extreme temperatures, the titanium coating ensures a longer service life. For different hole sizes, you only need one step drill bit, for home repair and easy work. While the drill is working, pour water to cool the step drill bit. Drilling holes in plastic, copper, aluminum and many other types of sheet metal, but not suitable for stainless steel. Learn more about our product: Technical data: Inseam: 5 mm, 7 mm, 10 mm, 12 mm, 15 mm, 17 mm, 20 mm, 22 mm, 25 mm, 27 mm, 30 mm, 32 mm, 35 mm. Material: high speed steel