Universal Diamond Core Drill Bits UDKB-LS 82x420xUNC 1 1/4 Art. No. 181435, Diameter (mm): 82. Laser-welded on fully automated welding machines for consistently high quality of the weld joint. High temperature resistant, with no segment detachment due to overheating even under extreme temperature stress. Universally applicable for dry and wet drilling, hand-held or with a drill stand. Uniform connection thread UNC 1¼ inside. Drilling depth 420 mm. Diamond segments with a wedge-shaped cut ("roof shape") for fast, easy, and smooth drilling. Specially developed, high-quality diamond segments with a high diamond content and special bonding for excellent drilling performance and particularly long service life. Ideal for universal use in reinforced concrete and masonry. Drive compatible with all REMS Picus drive machines and suitable drive machines from other manufacturers with UNC 1¼ external connection thread.