The Vevor annular cutter set is a 5-piece mag drill bit kit designed for metal drilling applications. It includes three HSS cutters in 1/2", 5/8", and 1" diameters, plus two pilot pins for accurate positioning, coolant control, and chip removal. Built from M2AL high-speed steel, the set is made for wear resistance and stable cutting performance. The 3/4" Weldon shank fits most magnetic drills that use Weldon clamps. Three plastic storage cases help keep the components protected and organized.