Features 1、High‑quality tungsten carbide material and fine grinding technology, make the cutting edge of the drill sharper. 2、Reduce cutting force and broken drill bit, improve the quality of hole wall, which is dependable to use. 3、Suitable for the processing of precise metal parts such as PCB SMT CNC boards, molds, plastics, copper, stainless steel, etc. 4、Total of 10pcs cleaning nozzle drill bits, which are practical and economical and can fully meet your needs. 5、Manufactured according to the original production specifications, in line with strict quality standards. Specification Item Type: Cleaning Nozzle Drill Material: Tungsten Carbide Drill Bit: Approx. 0.4mm/0.02in Quantity: 10pcs Note: If the nozzle is blocked, rotate the drill clockwise slightly, do not insert it directly, it will cause the drill bit to break! Package List 10 x Cleaning Nozzle Drill