Viking 00781 Step Drill Bit Set contains 4 popular Step Drill Bits capable of making holes in thinner metals and other materials in a range from 1/8" to 1-1/8” diameters.
Viking Type 78-UB Step Drill Bits have a unique dual flute design for cutting fast, clean holes that are accurate and burr-free. The enhanced flute design also rapidly removes chips, ensuring a longer bit life and reducing the possibility of binding. The split point on the tip of the Ultra-Bit is designed for faster penetration and prevents walking. The unique Gold Oxide coating reduces friction and heat for a smoother cut and helps extend the life of the tool. Viking Ultra-Bit Step Drill bits feature a round shank with 3-Flats for a secure grip when used in drills with standard 3-jaw Jacob style chucks.