This diamond core drill from Erbauer is suitable for masonry, bricks and blocks. Comes with 3x holesaws (38mm, 52mm and 117mm), extension bar, SDS adaptor, 3-jaw adaptor, pilot drill and drift key. Suitable for wet & dry use. Professional top-quality diamond core holesaw set for both wet and dry use. It includes 3 cores and 5 accessories. Featuring three popular core sizes with a slotted barrel.