Labor-saving ratchet design The aluminum alloy handle multi-purpose screwdriver features a 6.2-degree ratchet with a 58-tooth forward and reverse mechanism, delivering up to 80% less labor. Torque is 50N.m/50KG, and wrist position adjustment is not required. Multi-bit screwdriver set Includes 40 PCS S2 magnetic chrome-molybdenum alloy steel bits with a 6.35mm (1/4) shank. Bits cover PH (4), SL (4), Torx (10), Hex (9), PZ (3), U-type (2). 8 pieces are 45 mm long to meet professional use needs. Sturdy aluminum alloy handle Detachable aluminum handle structure is designed for narrow spaces. Made from super hard hot forged aluminum alloy and precision CNC single-piece molding, this handle offers durability and oxidation resistance. Multi-function handle The T handle provides multiple functionalities, enabling versatile transformations to adapt to various tasks. With this single tool, a wide range of jobs can be accomplished efficiently. Use scenarios - Furniture assembly in tight spaces: leverage the ratchet and compact handle to drive screws with reduced effort and improved control. - Bicycle and machinery maintenance: reach confined areas with the multi-bit set, including Torx, Hex, and PZ bits, for fast repairs. - Electronics and appliance service: use the PH, SL, and other precision bits for careful, accurate fastenings in constrained environments.