No electromagnetic induction, electrically and thermally insulated. Non-magnetic, non-static. Screwdriver set is adopted precision zirconia ceramics bits, good quality and Ceramic non-magnetic repair hand tool has strong hardness, screwdriver set is not easy to wear, good workmanship. Screwdriver has a 8pcs a set, 8 different bits for your convenient use. Screwdriver set is suitable for high frequency circuit adjustment. Fit for various inductance, semi variable capacitor, half electric resistance and big brand SMD parts., Weight: 0.1984160358 pounds, Manufacturer: Garosa