The FX Tools screwdriver bit and adapter set contains 8 different bits that include the most commonly used sizes such as PH1, PH2, PH3, H4, as well as 4, 5 and 6 mm. This set is ideal for use in mechanical work, offering a complete and durable solution. The bits are designed to fit precisely into the screwdriver and to ensure power and durability during use. The set also includes an adapter for maximum ease and flexibility in work.