Step Drill Bit Set. 6pcs Step Bits

Design: These bits feature a conical shape with progressively larger steps, each corresponding to a different drill diameter. Material and Coating: Often made from high-speed steel (HSS) and frequently coated with titanium nitride for enhanced durability, heat resistance, and reduced friction, allowing for longer tool life and smoother drilling. Versatility: They are suitable for drilling holes in various materials, including wood, plastic, and sheet metal (such as aluminum, copper, and stainless steel). Applications: Commonly used in plumbing, electrical work, and general metalworking or woodworking applications where multiple hole sizes are required. Shank: They can come with various shank types, such as a 1/4" hex shank, optimized for use with impact drivers or rotary drills.