Premium interchangeable esd micro screwdriver set contains 1x handle and 10x high quality screwdriver blades this set fits neatly into a compact carrying pouch ideal for maintenance teams camera smart phone and cell phone repairs electronic applications dental laboratories and surgeries electrical surface resistance of amplt108313 ohm to securely protect components against electrostatic energy manufactured as per din en 61340 5 1 suitable for bits with 4mm halfmoon and 4mm hios dri