Outstanding service life in reinforced concrete. High-quality, tough tungsten carbide provides strength and durability. Reinforced concrete is a common material in infrastructure, commercial and residential construction, and workers such as electricians, plumbers or HVAC installers often have to drill into it. The PRO SDS plus-5X hammer drill bits are designed for this tough job, with a robust 4-flute design that won't jam or break when you hit rebar. The 4-flute head of the PRO SDS plus-5X has an embedded cross made of high-quality tungsten carbide and offers comfort for professionals who need to drill precise holes in reinforced concrete. The masonry drill bit has 4 spiral flutes that channel dust away from the impact point, ensuring effective and long-lasting performance. PRO Plus-5X Set, 566810 mm, 5 pcs.