5Pcs 0.5mm 3D Printer Extruder Brass Nozzle For Makerbot MK8 Specification: Dimension: 13 x 6mm Material: Brass Precision: 0.5mm Screw Diameter: 6mm Inner diameter: 2.0mm Inner diameter's Accuracy: !#!amp!*!plusmn;0.2mm Package included: 5 x 0.5mm 3D printer extruder brass nozzle