11/16 Diameter X 1 Inch Depth of Cut 3/4 Shank High Speed Tool Steel Annular Cutter. Drill holes faster and only cuts the circumference. More accurate holes and cuts smoother with tighter tolerance. Burr free holes, no finishing required. Long lasting, made with high moly tool steel. More cutting edges reduce loading and increase cutting speed. Designed for cutting steel, stainless steel and non-ferrous metals up to 30Rc. Applications: Truck frames, Heavy equipment frames, Manufacturing equipment, Structural steel, Pipes, Flanges, Gusset plates, Railing, HVAC equipment.