FEIN TCT Ultra 35 carbide-tipped core drill bit, designed for fast, precise drilling in metal with smooth results and minimal burr formation. The TiAlSiN coating provides excellent wear resistance for demanding applications, while the cutter is also suitable for short-term dry drilling. When used with the KBE 36 QW MAGSPEED, it supports cutting speeds of up to 70 m/min. FEIN specifies a service life of up to 370 holes under optimum test conditions. The TCT Ultra 35 range is available in 14–36 mm diameters with a 35 mm cutting depth.