Socket & Socket Wrench Sets

Choose metric sockets for most modern cars and machinery that use millimeter fasteners, and SAE (imperial) for older vehicles, some US-made tools, and imperial fasteners; buy a set that matches the vehicle or equipment you work on and consider having both if you encounter both fastener types

Select 1/4" drive for light-duty tasks and tight spaces, 3/8" drive for general automotive and household use, and 1/2" drive for heavy-duty work and larger fasteners; many shoppers choose a 3/8" set as the most versatile or buy multiple drive sizes

Look for sockets made from chrome vanadium or chrome molybdenum steel with a chrome or satin finish for strength and rust resistance; impact sockets should be made from tougher alloys and have a black phosphate or oxide finish for use with impact tools

Buy a complete set if you need a range of sizes for general work or to build a toolkit; buy individual sockets if you only need a few specific sizes or want to replace lost or damaged pieces—sets often offer better value but include sizes you may not use

Useful features include quick-release ratchets, swivel or flex-head attachments for access, deep and shallow socket options, 12-point vs. 6-point profiles (6-point grips hex heads better under high torque), and clear size markings for quick identification

Keep tools clean and dry, wipe off grease and moisture after use, store sockets in their tray or a rack to prevent damage, occasionally apply a light oil to moving parts on ratchets, and avoid using chrome sockets with impact wrenches unless they are rated as impact sockets

Sets are commonly available from budget under $50 to several hundred dollars for professional-grade kits, with an average around $80; higher-priced sets typically use stronger alloys, tighter tolerances, better ratchets, and include more accessories, while budget sets cover basic sizes but may wear sooner