This is a professional maintenance tool set for electricians to do various types of electrical work or other repair work. No matter if you are performing electrical repairs or just daily repairs, in general this set is a must have for any handyman or electricians tool box. Features: Ergonomic handle for maximum comfort and exceptional torque. Includes 6 various types of magnetic bits to meet different electrical needs. Insulated design of test pen supports withstanding voltage up to 500V. Made of chrome vanadium steel, hardened for maximum wear resistance. Plug-pull tip design, easy to install and replace the bits, time-saving and efficient. Comes with a transparent storage case, convenient for storage and portable for use. Specifications: Material: Chrome-Vanadium Steel (6150 CR-V) + PP + TPR Surface Treatment: Surface Blackening Screwdriver Kit Includes: Cross Screw Driver: PH0, PH2 Slotted: SL3mm, SL6mm U-Shaped: U2.3 Triangle: 2.6 Test Pen: AC 100-500V, SL3mm Test Pen Size: Approx. 140 * 15mm Handle Size: Approx. 116 * 36mm 2-way Screwdriver Size: Approx. 156 * 14mm Suitable Usage: for Air Conditioning, Bicycle, Doors and Windows, Washing Machine, Refrigerator, Water Heater, TV, Fan, Lampblack Machine, Drinking Machine, Motorcycle, Furniture, etc Package Weight: 368g / 13.0oz Package Size: 18.5 * 16.5 * 4.5cm / 7.3 * 6.5 * 1.8in Note: The voltage tester may only be used within the specified voltage range. Package List: 1 * Screwdriver Handle 3 * 2-way Screwdriver 1 * Test Pen 1 * Storage Case