3/8 x 18 Carbide Tipped Masonry Drill Bit 3/8 x 18 carbide tipped masonry drill bit MD18-38 $19.100/ea
3/8 x 12 Carbide Tipped Masonry Drill Bit 3/8 x 12 carbide tipped masonry drill bit MD12-38 $12.700/ea
3/4 x 12 Carbide Tipped Masonry Drill Bit 3/4 x 12 carbide tipped masonry drill bit MD12-34 $25.330/ea