Atoplee 3/16-7/8" Titanium Coated Step Uni Drill Bit Set Wood Hole Brill Bit, 3-sided Shank Condition: Brand new. Material: High Speed Steel with Titanium Coated. Made by Long life high speed steel. Package Includes: 1 x Drill Bits Drills holes in steel, copper, stainless steel, plastic, aluminum, and other thin materials Two-flute design for faster, smoother cutting