DESIGNED FOR MICRO ELECTRONICS: Engineered for delicate, low-torque repairs: smartphones, laptops, tablets, game consoles, watches, and eyeglasses. NOT for furniture, automotive, or power-drill use. HARDENED CR-V STEEL: Heat-treated chrome vanadium bits resist rounding and stripping under normal precision torque. Engineered for delicate fasteners — apply light, steady pressure for best results. 51 SPECIALIZED MICRO BITS: Includes Phillips, Slotted, Torx, Tri-Wing, Hex, and Pentalobe profiles to open phones, watches, game consoles, and other modern proprietary devices without damaging screw heads. MAGNETIC BIT TIP: Magnetized bit socket holds bits firmly in the driver. Light magnetic charge transfers to the bit tip — picks up tiny phone, watch, and laptop screws so they don't fall into the device. POCKET-SIZED CASE, NO LOST BITS: Compact case with foam-cut slots holds all 51 bits in place. Press-and-tilt to retrieve bits cleanly. Fits in a pocket, drawer, or laptop bag for on-the-go repairs., Weight: 0.65 pounds, Manufacturer: Amazon