Strong L diamond core bits with a working length of 90 mm, with lasered diamond segments made of diamond grain bond, suitable for: concrete products (soft), hollow blocks, masonry bricks, bricks (soft), sand-lime bricks (soft abrasive/hard/highly compressed), plaster and aerated concrete. Design: height 8 mm, segment length: 24 mm, number: 4, Ø: 82 mm