Optimized brazing and hardening process for long life 15 percent 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.Optimized brazing and hardening process for top resistace in reinforced concrete.Optimized flute design to reduce stress and make the bit run cooler.4-flute design for fast dust removal.Centric tip for optimal hole geometry
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