Energy-efficient appliances and fixtures. Stylish and functional furniture and decor. High-quality tools and materials for DIY projects. Diamond Core Drill Kit & Case Set of 7. Turbo segments, various adapters, carry bag. 7 Piece Kit Inc: 3 Diamond cores Dia. 38 mm, 52 mm, 117 mm. 37 x 29 x 16 cm; 4.48 kg. We go above and beyond to ensure you receive the best level of service.