Material: Durable hard steel and aluminum alloy.5 different sizes: 0.8mm, 1.0mm, 1.2mm, 1.4mm, 1.6mm. Standard flat blade screwdriver with swivel head, single and practical.Perfect for repairing watches, changing batteries and screwing the clamp of glasses frames, etc. Each screwdriver comes with a spare blade for replacement. The universal key is a good assistant for opening or closing doors and windows on the construction site. The key is stable and the scale is also for the carpenter to measure locks. The lock cylinder scale is very easy to read. In addition to the 3 mm hexagon socket opening, a bottle opener, a square cone and 3 electrical cabinet keys are integrated. Features - Cross architect key with closed cylinder for PZ mortise lock, without profile cylinder in the housing structure. - Practical scale behind a square Allen key for measuring cylinder lengths from 25 to 75 mm - 3 square keys of 6, 7 and 8 mm respectively, e.g. for heating, ventilation and checking openings - This master key includes a 3mm Allen key on the tip and a short flat cam for emergency opening - Can also be used as a bottle opener Specifications Material: Chrome-plated zinc alloy Color: Silver Dimensions: 20 x 6.8 x 1. 7cm Weight: 180g Package Contents: 1 * Master Key