3D Printer Clogged Extruder and Nozzle Print Head Kit 4pc .4mm bit + Pin Vise BIT HOLDING TOOL + 2qty Nozzles .4mm MK7 MK8 Makerbot RepRap Felix 1.75mm filament ABS PLA</br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/41PM4h7fB-L.jpg' noproxy></br>