12 Pcs, Drill America 5/16" x 4" Carbide Tipped Masonry Drill Bit, Drill America, DAM4X5/16
$23.00
Size: 5/16"; Material: Carbide Tipped; Finish: Black Oxide; Overall Length: 4"; Shank Type: Round; Style: Masonry; Cutting Direction: Right Hand Carbide-Ti