3D Printer Kit Extruder Nozzle Head Cleaner Bits .2mm .3mm .40mm (2 each) + 3 nozzles 0.2mm 0.3mm 0.4mm for MK7 MK8 Makerbot RepRap print nozzle for 1.75mm filament ABS/PLA printers Will clear nozzles and produce finer prints Shipped in protective plastic case Japanese made tungsten carbide bits From Daewon Industries 3 quality brass nozzles: sizes .20mm .30mm .40mm