Long-lasting wet drilling in concrete. High diamond segments last longer. Whether you need to hammer anchors or cut holes for pipework, drilling large holes in concrete is a difficult task, especially when you're dealing with reinforced concrete. The durable PRO Core Cutter wet is designed to help you with these demanding tasks. The impressive durability of the PRO Core Cutter wet is due to two Bosch trademarks. The cutting segments are made from a high-quality diamond set in a premium metal matrix that is laser-welded to the shaft to ensure strength and long-lasting performance.