5/16 x 6 Carbide Tipped Masonry Drill Bit 5/16 x 6 carbide tipped masonry drill bit MD6-5166 $3.900/ea
5/16 x 12 Carbide Tipped Masonry Drill Bit 5/16 x 12 carbide tipped masonry drill bit MD12-516 $10.330/ea
5/16 x 18 Carbide Tipped Masonry Drill Bit 5/16 x 18 carbide tipped masonry drill bit MD18-516 $15.950/ea
5/16 x 24 Carbide Tipped Masonry Drill Bit 5/16 x 24 carbide tipped masonry drill bit MD24-516 $19.180/ea
3/16 x 4 Carbide Tipped Masonry Drill Bit 3/16 x 4 carbide tipped masonry drill bit MD6-3164 $2.650/ea