Feature:1. Fast Drilling: PCB Drill Bit Set has incisive cutting edges, milling grooves and clean surfaces, drilling fast and improving work efficiency.2. Multi Purpose: PCB drill bits are suitable for printer nozzle cleaning, circuit boards, CNC engraving, jewelry, metal plastics, etc.3. Excellent Material: Mini drill bit is made of high quality tungsten steel, with high wear resistance, high toughness, damage resistance and high work efficiency.4. Easy to Clean: Tungsten carbide macro drill bits set can be cleaned quickly and easily without leaving sequins or residue.5. Various Specifications: There are 10 PCB color drill bits, and the drill bit size is 0.3‑1.2mm, with a variety of options to meet your different needs.Specification:Item Type: Mini Drill BitMaterial: Tungsten SteelHandle Type: Round ShankShank Diameter: 1/8inDrill Bit Specifications: 0.3-1.2mm Package List:10 x Mini Drill Bit