Norseman by Viking Drill and Tool 26473 8 Piece 9/16 in. to 1 in. Heavy Duty Black and Gold Vortex 1/2 in. Shank Set

Easily enlarges existing holes without damaging the pointStay sharp up to 4x longer compared to conventional and other specialty tip designRecommended for cast iron, brass, sheet metal, plastic, mild steel, copper, hardened steel3-flats on shankMade in the