The screwdriver of this ceramic drill is specially designed for high frequency circuit adjustment. Suitable for all kinds of inductors, semi-variable capacitors and semi-resistors. Non-electrostatic screwdriver with high-quality zirconia ceramic bit. Strong hardness, not easy to wear, fine workmanship. 4-piece set is convenient to use. Characteristic: The screwdriver is made of plastic handle, which is very easy to grasp and use. No electromagnetic induction, electrical insulation and heat insulation. No eddy current loss at high frequency. Anti-static insulating ceramic screwdriver. No electromagnetic induction, electrical and thermal insulation. No magnetism and static electricity. 4 kinds of different drill bits, easy to use. Suitable for high frequency circuit adjustment. Suitable for all kinds of inductors, semi-variable capacitors and semi-resistors., Weight: 0.09259415004 pounds, Manufacturer: Aisuoka