Repair tool kit: 57 screwdrivers, a complete set of professional tools for daily maintenance. Versatile: repair all electrical or digital products such as laptops, Macs , computers, jewelry, glasses, watches, household appliances, etc. Convenient and practical box: compact design, easy to carry and store, easy to find all the bits of screwdriver you need. you can think of. PREMIUM MAGNETIC METAL: The black metal part of the handle has excellent magnetic properties to better stabilize the tip of the screw head, heat-treated S2 alloy tool, a super material durable that can withstand test time. Special design: the screwdriver can be extended to hard-to-reach places. Metal handle, more comfortable and better non-slip performance. 57 precision electronics repair kits Chrome vanadium steel/non-slip handle/bayonet design/magnetic adsorption/ wide use Magnetic design: the drill is connected by an aluminum alloy rod, which is automatically adsorbed, tightly combined, convenient and durable. Drill material: steel CR -V chrome vanadium, durable, high hardness, good toughness Variable angle steering stem Ball bearing swivel head Flexible rotation , quick release screw and practical extension rod The extension rods can be spliced as desired. With bending, rotating and stretching functions to meet the needs of different groups of people Non-slip handle The careful design of the non-slip handle makes it easy to maintain. Exquisite storage box Packed in a plastic box, the buckle locks the bit and is not easy to fall off, protecting the bit