Makita D-00670 Drill Bits The Drill Bits D-00670 are well-suited for use with SDS-PLUS Rotary Hammers. It has 2 cutter SDS plus drill bits that work great for masonry and concrete. The solid carbide tip is equipped with a centering point, and the optimized flutes ensure fast drilling speeds. SDS-Plus drill bits are frequently used for boring holes in concrete, brick, and masonry. They are also occasionally used for drilling holes in tiles. Bit dia (D)(mm) / 15 Overall length (L1) (mm) / 160 Working length (L2) (mm) / 100 Per pkg / 1