Long Life drilling in reinforced concrete High-quality, tough tungsten carbide ensures strength and durability Fits all SDS plus rotary hammer drills May come in old design PRO SDS plus-5X Hammer Drill Bit for Long Life Drilling in Reinforced Concrete Reinforced concrete is a common material in infrastructure, commercial and domestic construction, and workers such as electricians, plumbers or HVAC installers often need to drill into it. PRO SDS plus-5X Hammer Drill Bits are designed for this tough task, with a hardy 4-cutter design that doesn't jam or break when hitting rebar. Made from an embedded cross of high-quality tungsten carbide, the PRO SDS plus-5X's 4-cutter head offers convenience to professionals who need to drill accurate holes in reinforced concrete. The masonry drill bit has 4 flutes channeling the dust away from the impact point and ensuring effective and long-lasting performance.