The Total TACSD30556 55 pcs Screwdriver Bits Set is a comprehensive and versatile tool kit that provides a wide range of screwdriver bits to suit various applications. This set includes 55 high-quality screwdriver bits, along with additional accessories, all neatly packed in a plastic box for convenient storage and transportation. The set comprises 21 6.35X25 mm screwdriver bits, offering a variety of slotted (SL), Phillips (PH), Pozidriv (PZ), Torx (T), and hex (H) sizes. These screwdriver bits are crafted from durable materials, ensuring their longevity and resistance to wear. With the included sizes, you'll have the necessary tools to handle different types of screws in various applications. In addition to the standard screwdriver bits, the Total TACSD30556 set also features 20 4X28 mm precision screwdriver bits. These bits are specifically designed for smaller and more delicate tasks, where precision and accuracy are crucial. The precision bits include slotted, Phillips, Torx, and hex sizes, allowing you to work on intricate electronics, jewelry, and other detailed projects with ease. To provide versatility in screwdriver use, the set includes a 4-6 mm (25 mm) bits adaptor, allowing you to use different size bits with ease and convenience. This adaptor expands the compatibility of the screwdriver bits, enabling you to tackle a wider range of screw sizes and types. To assist with socket-related tasks, the Total TACSD30556 set includes nine 1/4 inchX20.5 mm sockets, ranging in sizes from 4 mm to 12 mm. These sockets are ideal for tightening or loosening bolts and nuts, providing a reliable and secure grip during use. The set also offers two bits holders: a 4X60 mm bits holder and a 6.35X50 mm bits holder. These holders securely hold the screwdriver bits in place, allowing for easy access and quick bit changes during work. With these holders, you can keep your bits organized and readily available whenever needed. To enhance usability and convenience, the Total TACSD30556 set includes a TOTAL Style ratchet handle and a TOTAL Style handle. These handles feature ergonomic designs, providing a comfortable grip and reducing hand fatigue during extended use. The ratchet handle allows for forward and reverse motion, making it ideal for repetitive tasks that require quick screwing or unscrewing. The Total TACSD30556 55 pcs Screwdriver Bits Set offers a comprehensive selection of screwdriver bits, along with essential accessories, to meet the demands of various screwdriving applications.