The KWB 4-blade carbide-tipped hole saw - 33-83 mm - 55 mm is suitable for drilling in expanded concrete, masonry, tiles, ceramics, natural stone, lightweight construction panels, plasterboard and plastics. Whether you need to install an electrical outlet or run pipes, this bit saw will meet your requirements. Even if the materials are thick, you'll have no trouble making your hole, since the saw has a cutting depth of 55 mm. Thanks to the centering point, stability is guaranteed during use. Advantages : 4 blades of different diameters Solid, reliable aluminum support plate Stability thanks to the centering point Features: Cutting depth: 55 mm Diameters: 33, 53, 67 and 83 mm Material: hard metal Item no. 499690 Packaging : KWB 4-blade carbide hole saw - 33-83 mm - 55 mmDelivered in original packaging.