Masonry Drill Bit Set 12Pcs (1/8″-9/16″), Four Blade Serrated Eccentric Tungsten Carbide Drill Bits for Concrete, Cement, Brick, Tile, Marble, Glass and Wood, 1/4″ Hex Shank, with Storage Case, Green 12 Pcs(1/8-9/16)

A 12-piece OSTTE masonry drill bit set with YG6T carbide tips and a 1/4″ quick-change hex shank, designed to help reduce wandering on smooth surfaces while drilling materials like concrete, brick, tile, glass, marble, and wood.