With the Carat Dustec Brilliant HTM1021504 dry core bit, you can create clean and accurate 102 mm wall penetrations in brick, sand-lime brick, and abrasive masonry. The robust laser-welded segments ensure smooth and precise starting with a fast drilling pace, eliminating wall cracking and segment loss. Because it is engineered for dry drilling without water cooling, you prevent messy slurry in indoor spaces. Connected to a dust extraction system, the integrated flange slots channel fine dust away directly. Featuring a working length of 150 mm and an M16 female thread, it provides the perfect solution for installing ventilation ducts and drainage pipes.