Hexagon Hot End manufactured by RepRap Discount. This all-metal hot end kit works very well with a variety of materials from Nylon to PLA. Nozzle can be removed while the hot end is still mounted for versatile printing. Two fans are included in this kit: one for cooling the hot end and a second fan for cooling the part. At only 55-56mm with the nozzle these all-metal hotends are great on any printer. A 24v heater cartridge replaces the normal 12v cartridge included in this kit.