VEVOR - Step Drill Bit, 1/4 to 3/4 inch, 1/4 inch Hex Shank, TiAlN Coating Cobalt HSS High Speed Steel - Black

This step drill bit includes 9 sizes from 1/4 to 3/4 inch for varied tasks without frequent changes. Made from cobalt HSS with TiAlN coating for durability on stainless steel. The 118° tip and four-flute design ensure fast chip clearing, cooling, and smooth holes.