Feature:1. The kit contains 10 miniature twist drills of different sizes, which are suitable for deep hole processing in different situations.2. The drill bit made of alloy tungsten steel has high hardness and wear resistance, which can avoid breaking during use.3. Twist drills have incisive cutting edges and large spiral grooves, which make it easier to remove chips and make holes easier and faster.4. The humanized positioning loop design can reduce the debugging time of the machine and achieve precise and rapid drilling.5. The anti-vibration design of the cutting edge can slow down the vibration of the machining process and improve the quality of the machining surface.Specification:Item Type: Micro Twist BitsMaterial: Alloy Tungsten SteelSpecification: 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mmProcessing Range: Accuracy drilling of beeswax, circuit boards, combination board, CNC engraved plexiglass, jewelry, hardware and plastics, etc..Package List:10 x Micro Twist BitsNote:1. When drilling the hole, follow the vertical direction. Do not use too much force. Slowly twist the hole in one direction by hand. The needle can not be broken or pried hard, otherwise it will be easily damaged.2. It is not allowed to be clamped on a hand electric drill for high‑speed rotation and drilling, otherwise it will collapse.3. When punching holes, be careful to clean up the surrounding powder while rotating.4. Grasp the tail of the drill bit by hand and slowly rotate and drill. When it is about to get through, pay special attention to reducing the speed and strength.5. If the needle feels tight when it rotates, please withdraw the needle and re‑enter the powder after cleaning the hole.