With the Carat Brilliant EB04642020 diamond core drill bit, you drill quickly and accurately through reinforced concrete and hard stone. Thanks to its laser-welded tt segments, you work with complete confidence and no risk of segment detachment. Designed specifically for wet drilling with water cooling, it prevents overheating and maximizes segment durability. Featuring a 46 mm diameter and a useful drilling length of 400 mm, it allows you to create clean pass-through holes for plumbing, drainage, and electrical conduits in thick walls or floors. The standard 5/4"UNC thread attaches directly to your core drilling rig.