12 Step Spiral Flute Cobalt Step Drill Bit Set for Stainless Steel and Metal

About this item

• M35 HSS Cobalt Steel Material: The metal step drill is coated with advanced titanium coating, which has strong wear resistance, heat resistance, corrosion resistance and good impact resistance, and can improve the service life of the drill bit
• Quality Services: If you have any questions or are not satisfied with our metric drill kits, please feel free to contact GRENPRO for assistance
• Versatile Handle: Designed to fit 1/4-inch (6.35 mm) hex securely on lithium-ion drills, as well as hand drills and bench drills.
• Size: 12 step sizes Includes 3/16",1/4", 5/16", 3/8", 1/2", 9/16", 5/8", 11/16", 13/16", 7/8". Cobalt step drills can make multiple holes of different diameters in materials such as stainless steel, aluminum, wood, plastic sheets, etc
• Four Spiral Flute: Metal step bit four cutting blades design guarantees a faster and smoother cutting. Cobalt step bit with 89HRC surface hardness, harder materials can be cut and higher cutting speeds can be achieved.Feels like a hot knife through butter