Features:Lengthened, apply with new technology, not easy to , bendable, new products promotionAnti-Static, Non-Magnetic Curved Precision Tweezers; 3D printing tweezers great for nozzle maintenance and cleaning excess support material, safe and container; All of the items come in a plastic tube with a screw lid to keep safely Long-lasting kit for several purposes; Remove excess plastic and clear jams with high precision, also great for general maintenance of the heatsink section.This Drill bit is for cleaning of the nozzle, use it, first make your nozzle is heated to the temperature of printing the filament you used, for example, if you were use ABS filament, heat the nozzle to 200-220 Celsius, is about 180-200 CelsiusColour:black+whiteMaterial:MetalPackage Contents:2 * 0.15mm (cleaning needles)2 * 0.2mm (cleaning needle)2 * 0.25mm (cleaning needles)10 * 0.35mm (cleaning needle)10 * 0.4mm (cleaning needle)1 * Cleaning Needle Storage Tube1 * straight mouth tweezers1 * curved tweezers1 * Copper Brush