Socket wrenches, an indispensable tool for DIY enthusiasts and mechanics, allow for tightening and loosening bolts. Available in different sizes, the sockets and bits are interchangeable to meet the needs of users.
Socket wrench characteristics to be aware of include:
- they must be mounted on a wrench, ratcheting or not, to be used;
- they are comparable to box-end wrenches in that they are angled;
- they come in short and long versions (50 mm);
- they are packaged in plastic boxes to facilitate storage, but also to protect them from moisture;
- the 6-point models allow for significant force to be applied on nuts without damaging them;
- the 12-point versions make repositioning the wrench easier;
- they are available in different sizes ranging from ¼ to 1 inch.
Some screwdriver bits and socket wrenches come with various accessories:
- an extension for reaching bolts located in hard-to-reach places;
- a universal joint for accessing a bolt whose axis of screwing is not perpendicular to the plane;
- reducers and increasers to adapt them to the fastening system;
- a bit holder for mounting a hex shank screwdriver bit on a socket wrench.
Certain criteria must be considered when choosing screwing accessories.
- Their strength depends on the hardness of the metal used for their manufacture. It varies from 42 HRC to 50 HRC.
- Standards (DIN, ISO, NF ISO, or DIN ISO) are marks of quality.
- The shape and precision of the bore are parameters not to be overlooked. Certain shapes allow for significant force to be applied without damaging either the tool or the bolt.
- Some brands offer a lifetime guarantee.
To summarize, socket wrench sockets and bits are available in different sizes (1/4, 3/8, ½, ¾, and 1 inch) and shapes (long, short, 6-point, and 12-point) to suit all uses. Materials guaranteed for life are preferable for significant or frequent work.