Engineered for industrial demands, the fein ultra tct carbide core drill hole cutter with quickin holder is the ultimate choice for precision, durability and high efficiency drilling in metalworking environments'. '.strtoupper('f')eaturing fein’s hm ultra technology, this carbide tipped core bit is designed for continuous use, delivering exceptional wear resistance, heat tolerance up to 800°c, and an outstanding cutting performance across the toughest metals'. '.strtoupper('a')vailable in diameters from 12 mm to 65 mm, with cutting depths of 35 mm or 75 mm, the fein ultra core cutter features a quickin holder for fast, tool free bit changes, ensuring minimal downtime and maximum productivity during demanding serial drilling operations'. '.strtoupper('t')he innovative 3 flute design delivers smooth, chatter free drilling and superior chip evacuation via its conical flutes, while the long service life—up to 400 holes Ø18 mm, s235, 20 mm thick—proves its exceptional durability and value'. '.strtoupper('f')eatures and benefits bull carbide tipped hm ultra core drill bit for long lasting use in industrial applications bull quickin holder system for rapid bit swaps without additional tools bull available in 35 mm and 75 mm cutting depths bull diameter range Ø12 mm to Ø65 mm bull heat resistant up to 800°c – perfect for high load serial drilling bull superior chip removal with conical flute design bull 3 flute geometry for precision drilling and reduced vibration bull double the service life and speed compared to standard hss core bitsspecificationscutting depth 35 mmbore Ø 28 mm