SpecificationsBit diameter:0.2mm 0.3mm 0.4mm 0.5mm 0.6mm Total Length:38mmDrill diameter:3.175mmPackage Included:0.2mm 0.3mm 0.4mm 0.5mm 0.6mm(2Pk each size)These Micro-drill bit Extruder Nozzle Cleaners with good milling ,cutting performance and ensuring works awesome to fix clogs .it is an essential for 3D printer. the extruder nozzle must be cleaned from time to time.
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