3D printer tool kit: aluminum block, Mk8 nozzle, extrusion wheel

Features: The nozzle cleaning needles are very flexible and robust. They insert easily into the nozzle and won't break. Designed for heavy-duty use, they offer a long service life. Easy to install and replace. Specifications: Material: Metal. Incision diameter: 4 mm. Note: Please allow a 0-2 cm error due to manual measurement. Please make sure you do not mind before bidding. Due to differences in monitors, the actual color of the item may differ slightly from the color shown. Package includes: 1 set of nozzles.