VEVOR - Step Drill Bit Set,1/8 - 7/8 inch,3 Pieces Step Drill Bits,1/4 inch Hex Shank,TiAlN Coating Cobalt HSS High Speed Steel - Black

This step drill bit set includes 1/8 to 1/2, 1/4 to 3/4, and 3/16 to 7/8 inch sizes 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.