Proxxon MICRO screwdrivers 15 piece set. Shafts of high alloy Nickel-Chrome-Molybdenum (SAE 8660) for maximum hardness and toughness. Chromed with brinelled tip. The ergonomically formed plastic handles are oil and impact resistant. The revolving top and finger mould improve ease of use. Fixed place for each item in the practical holder. May be used as desktop stand or fixed to a wall. Slot: 1.0 x 40, 2.0 x 40, 3.0 x 40 Philips: PH 0-3 x 40, PH 0 x 40, PH 1-2 x 40 Torx: T 5 x 40, T 6 x 40, T 8 x 40, T 10 x 40, T 15 x 40 Allan key: 1.5 x 40, 2.0 x 40, 2.5 x 40, 3.0 x 40 No 28148 15 pieces in a stand NOTE: It is important to use the Proxxon MICRO screwdrivers with care and feel. The brute force associated with larger screw-drivers is best left for other tools.