This is a 115 in 1 screwdriver set, this 115 bits included is made of chrome vanadium has a hardness of 55-60HRC. The Screwdriver Tool Kit head is magnetic, with good quality assurance and operability. The screwdriver is equipped with anti-static tweezers for efficient and comfortable work. Comfort and ergonomics with floating rear spin-cap, a grippy rubberized over mold that tolerates greasy hands. The screwdriver itself is equipped with a magnetic tip, useful for both pulling screws out and for lining them up with the hole, and the flexible extension rod allows you to adjust the length of the screwdriver depending on the size of the object you're working on. The screwdriver heads are magnetic, made of impact-resistant tool steels, solid as chrome vanadium steel, and they can tighten the screws during repair, which improves performance and saves your time and effort. Come with a magnetic screw memory mat for disassembly and reassembly of screws in a convenient and effective way. Size and type printed on box easy to grab the right tool, easy-to-see tip identifiers placed right on the top, easy to identify. Each magnetic tip driver does a great job holding screws in place. These precisely machined bits fit properly into the screws and protect both the bit and the fasteners from damages. The portable screwdriver set includes 1 small screwdriver, 98 precision bits, and 15 other necessary screwdriver accessories. Come with a magnetic screw memory mat for disassembly and reassembly of screws in a convenient and effective way. Well-built handy toolbox - best gift for fathers & men in festivals