Feature 1 Fine grinding process makes the cutting edge of the drill sharper, easy and effortless. 2 0.7mm drill bits, reduce cutting force and broken drill bit, improve the quality of hole wall. 3 Adopts high quality tungsten carbide material, has high hardness and high temperature resistance, durable to use. 4 Suitable for PCB SMT CNC board, mold, plastic, copper, stainless steel and other precise metal parts processing. 5 Practical 3D printer parts, easy to install, total 10pcs can fully meet your needs.Item Type: Nozzle Cleaning DrillMaterial: Tungsten CarbideDrill Bit: Approx. 0.7mm/0.028inQuantity: 10pcsNote: If the nozzle is blocked, rotate the drill clockwise slightly, do not insert it directly, it will cause the drill bit to break! Package List10 x Nozzle Cleaning DrillNote1. When cleaning the nozzle, make sure to heat the nozzle to 200C.2. If the nozzle is blocked, gently rotate the drill clockwise, do not insert it directly, it will cause the drill bit to break!3.Please note that the color of this product will be sent randomly, please make sure you don't mind before ordering.