5/32 in. x 6 in. SDS-Plus Rotary Hammer Bits. Pack of 5. Optimized brazing and hardening process for long life. 15% faster (compared to S4L). Bosch-made carbide tip is tougher and more durable under heavy loads. Proprietary Bosch hardening process results in more holes per bit. Ideal for anchoring and through-hole applications in concrete.