Lasts up to 1.5 times longer than a Bosch SDS plus-1 drill bit. Reinforced concrete is a common material in infrastructure, commercial and residential construction. Electricians, plumbers or heating and air conditioning fitters often need to use this drill bit. The Pro SDS plus-5X hammer drill bit is designed for this difficult task and has a robust 4-flute design that will not jam or break when hitting reinforcement. The 4 flute head of the Pro SDS plus-5X has an embedded cross of high quality tungsten carbide and provides 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. Suitable for all SDS plus rotary hammers.