The DX High Speed Dry diamond core drill with a 1.1/4 inch UNC thread mount is suitable for dry drilling. With a maximum usable length of 330 mm, the diamond core drill can create holes with a diameter of 142 mm. The even use of the entire diamond segment and the extended lifespan of the core drill are achieved through the innovative 3D diamond matrix. Dry drilling produces less mess and allows for more efficient work, even in locations without a water supply. The over-twisted core drill reduces wear and is very cutting-friendly. Additional technical specifications: Segment width: 2 mm, Number of segments: 8, Segment height: 10 mm, Asphalt: No, Concrete: Yes, Drilling range for concrete: 305 mm, Drilling range for masonry: 305 mm, Screed: Yes, Tiles: No, Thread mount: Standard, Granite: Yes, Sand-lime brick: Yes, Brick: Yes, Marble: Yes, Masonry: Yes, Segment dimensions: 250 x 2 x 10 mm, Heavily reinforced concrete: Yes.