3D Printer Kit J-Head Clogged Extruder Nozzle E3D V6 & V5 (2each) .2mm .3mm .4mm (1 each) .5mm .6mm .8mm 1.0mm bits for unclogging jammed nozzles and improving prints Will clear nozzles and produce finer prints Shipped in protective plastic case J-head and Standard Nozzle clearing Kit Restore print quality in minutes! 2 each of smaller bits!!