Mechanics tool kit is made with heat treatment, chrome plated and polished for better strength, durability and corrosion protection. Socket wrench set includes 1/2", 3/8" and 1/4" metric / SAE sizes to satisfy your general automotive repairs work. Ideal for wide application, such as car maintenance, motorcycle maintenance, furniture assembly, home maintenance work, equipment inspection and repair, etc. 72-tooth ratchet handles allow for working better in tight spaces, reversible design allows your loosen and tighten fastener job without removing the socket. The quick release button helps you replace the socket without a tool. Magnetic screwdriver holder and 80 pcs screwdriver bits include hex, torx, square, slotted and phillips various size satisfies your wide range of household use.