3D Printer Clogged Extruder Nozzle Print Head Kit .2 .25 .3 .35 .4mm bits (2 each) + Pin Vise Bit Holding Tool + (1 each) Nozzles .2mm .3mm .4mm MK7 MK8 Makerbot RepRap Felix 1.75mm Filament ABS PLA Will clear nozzles and produce finer prints Shipped in protective plastic case Japanese made tungsten carbide bits 3.5" pin vise nozzle cleaning tool 3 quality brass nozzles .20mm .30mm .40mm