General description Tungsten carbide-tipped, sand-blasted masonry drill bits designed for drilling into concrete, masonry, brick, block, and stone. This set is supplied in a handy, soft-grip storage case. Technical specifications Includes 10 pieces: 2 x 4mm, 2 x 5mm, 2 x 6mm, 2 x 8mm, 10mm, and 12mm bits Compatibility and accessories Compatible with all SDS Plus chucks