Bosch 2608580593 Professional Dry Diamond Core Cutter 142 x 400mm. Bosch 2608580593 142 x 400mm Dry Diamond Core Cutter. The Bosch 2608580593 142 x 400mm Dry Diamond Core Cutter is a cutter ideal for achieving high-performance drilling in a range of applications, notably dry drilling masonry and installing electrical sockets.