-【Variety & Versatility】STREBITO all in one screwdriver kit includes 120 Pcs 4mm precision bits and 44 Pcs 1/4" security bits, ensuring you have the most complete assortment of bits for electronics and households repairs. The 4mm bits (Phillips, Torx, Pentalobe, Triwing, etc) are suitable for Computer, Laptop, Phone, Macbook, iPhone, PS5, Nintendo Switch, Xbox controller console and more. While 1/4" tamper proof bits are ideal for HVAC, Home Appliances, Furniture, Cars, Military, Gunsmithing, etc -【Adaptability and Portability】The 1/4 nut driver has an integrated bit holder inside handle, you can select 12 bits from the screwdriver bit set (Schrader Valve Insertion, Slotted, Star, Square, Clutch, Torq Set, Hex, etc) and make a personality multibit screwdriver. You'll always have the right tool in hand and no need to carry multiple tools on any jobsite. In addition, 4mm and 1/4" bit kits folders are attached to the portable oxford bag with velcro, offering easier storage and carrying -【Professional Design】Our computer tool kit has been humanized designed to maximize your fix capabilities. The knurled grip handle of the screwdrivers is ergonomically shaped and made by pro material to prevent slipping, deliver comfortable control and maximum torque. Bit drivers feature magnetic to easily hold bits and pull screws out. Clearly visible size markings on each bit make size identification quick. For most commonly used bits, the bit kit gives you duplicates in case one gets lost -【Practical Accessories】This electronics tool kit contains 27 effective tools for different repair needs. The anti-static wrist strap helps protect your electronics from ESD damage. Magnetizer demagnetizer tool strengthen magnetism of the tips for grabbing screws easily, or weaken for protecting sensitive electronics. Magnetic mat keeps screws and parts organized, prevent from losing and messing up. Suction cup is used for removing phone and tablet screen. Brush and Cloth are ideal for cleaning -【Durability & Reliability】The bits are CNC machined to be precise, and made of high quality Chrome Vanadium Steel which is 60HRC hardness, to ensure long-lasting performance. You can count on our toolkit to help you remove and replace security fasteners. This laptop screwdriver kit is covered by STREBITO's lifetime warranty and 30 days money-back. If you have any issues with your tool sets, simply contact customer service for troubleshooting help, parts, replacement, or refund