QuestCraft 11 Pcs Fits Hilti, Bosch, SDS Plus Concrete Drill Bit Set 18" Long Universal 11 pcs C2 tungsten carbide tipped SDS drill bits Ideal for drilling in brick, stone, concrete and other masonry; Fits HILTI, BOSCH and other SDS or SDS Plus Style Chuck. INCLUDED SIZES:; 3/16"  x 4" L; 1/4"  x 4" L; 1/4"  x 6" L; 5/16"  x 6" L; 3/8"  x 6" L; 3/8"  x 8" L; 1/2"  x 8" L; 3/8"  x 18" L; 1/2"  x 18" L; 5/6"  x 18" L; 3/4"  x 18" L;