0.1-1.0mm Mixed 3D Printer Nozzle Cleaning Drill Bit Kit for MK7 MK8RepRap 10Pcs

38 mm in total length Diameter of Shank: 3.17 mm Size: about 0.1 mm to 1 mm Any owner of a 3D printer has to have one of these powerful instruments, nozzle drill cleaners. Nozzles need to be cleaned to maintain flowing printing because blocks occur frequently during printing.