[40 in 1 DIY Screwdriver Set] This magnetic drill bit set includes 1 aluminium alloy handle, 32 short 25 mm bits (PH, SL, Torx, Hex, PZ, U-shape), 6 long 45 mm bits and a built-in magnetic slot. The bits are clearly characterized by coloured rings.[Long-lasting Material] The screwdriver bits are made from chrome vanadium steel, which is hard but not brittle, ensuring that they can be used for a long time, ultra-hard hot-forged aluminum alloy handles ensure durability and oxidation resistance.[Effort-Saving Magnetic Design] The aluminium alloy T-handle can be disassembled and Installation, which provides better leverage of torque to time-efficient. This magnetic handle also have strong magnetism, the screws are not easy to fall off.[Easy to Use] The ratcheting screwdriver can be installed by simply rotating a very small arc repeatedly by the wrist, and the handle can be installed on the other side for reverse rotation, eliminating the need to repeatedly adjust the bit position when using in tight spaces.[Compact and Versatile] Magnetic bits hold screws well, preventing annoying drops during repairs. The kit comes with a wide variety of bits, so you’ll almost always have the right one on hand without buying others.