5/16X4-3/4 HEAVY DUTY HAMMER DRILL

Roto-Percussion Masonry Drill Bit, 5/16″ Diameter, 4-3/4″ Overall Length, 3-1/4″ Drilling Depth, 1/4″ Shank, Carbide-Tipped, Straight Shank, For 3 Jaw Drill Chucks, 6 per Pack