1/2″ X 60 GRIT DIAMOND CORE DRILL

Diamond Core Drill, 1/2″ Diamond Core Drill, .51″ Outer Diameter, .43″ Inner Diameter, 1/4″ Shank Diameter, 1″ Shank Length, 2-1/4″ Overall Length, 60 Diamond Grit Size, 1 per Pack”