Multi-material drill bits, SDS Plus shank, tungsten carbide tipped, extra hard Tungsten-Titanium-Carbide tips, diamond ground cutting edges, high temperature brazed, chip removing, MS 5 spiral for optimal waste removal, for all SDS Plus hammer drills with hammer stop. Copper colour, ground surfaces, for masonry, marble, reconstituted stone, concrete, granite. brick, ceramics, hard- and softwoods, plastics and acrylic, alloyed and unalloyed steel, glass and crystal.