Bulldog, 5 piece, sds, rotary hammer, bit set, includes: 3/16" x 4" x 6", 1/4" x 2" x 4", 1/4" x 4" x 6", 3/8" x 4" x 6" & 1/2" x 4" x 6" bits, optimized brazing & hardening process for long life, 4-flute design to reduce bit stress & make it run cooler, centric-tipped drill bit heads that are hard, tough & resistant to extreme loads, rugged reusable hard case.