EFFICIENT: Four-flute design for fast dust removal, up to 15% faster (compared to S4L) DURABLE: Carbide-tipped heads are harder, tougher, and more resistant OPTIMIZED FOR LONG LIFE: Using Bosch's unique brazing and hardening process, these carbide drill bits are made to last, even when used in the toughest of materials like concrete, brick and stone STORAGE: Rugged storage case for easy access, organizing, and portability BIT SIZES INCLUDED: (1) 3/16 x 4 x 6 In., (1) 1/4 x 2 x 4 In., (1) 1/4 x
