Hydraulic cylinders .
Wrenches or spanners are most useful. Sockets are very useful in many cases. I keep complete sets of both SAE and Metric wrenches in my car. along with Allen wrenches of both types. I do have some excellent adjustable ( crescent ) wrenches, but prefer wrenches that fit exactly as I was taught in maintaining aircreft.
Allen wrenches are used to tighten and loosen Allen screws.
The different types of wrenches used for plumbing include pipe wrenches, adjustable wrenches, basin wrenches, and strap wrenches. Each type is designed for specific tasks such as tightening or loosening pipes and fittings in plumbing systems.
The "SW" on spanners, or wrenches, stands for "Socket Width" or "Spanner Width," indicating the size of the opening that fits over a nut or bolt. It is often used in reference to the width across the flats of the fastener it is designed to engage. This measurement is crucial for ensuring that the spanner fits properly and can apply the necessary torque without slipping.
There are several types of bicycle wrenches used for maintenance and repair, including pedal wrenches, cone wrenches, cassette lockring wrenches, and bottom bracket wrenches. Each type is designed for specific bike components and tasks. For example, a pedal wrench is used to remove and install pedals, while a cone wrench is used to adjust wheel bearings. These wrenches are essential tools for keeping a bike in good working condition and ensuring proper maintenance and repair.
An adjustable spanner is an adjustable hand tool used for tightening and loosening nuts and bolts.
wrench is generally used for tools that turn non-fastening devices or may be used for a monkey wrench - an adjustable spanner.
To tighten bolts and nuts
A spanner wrench is often used in the plumbing industry. They are mostly used to unscrew faucets, old pipes that haven't been touched in several years.
The tools commonly used to tighten bolts effectively are wrenches, socket wrenches, and torque wrenches. These tools provide the necessary leverage and control to ensure that bolts are tightened to the correct specifications.
Nobody wants to buy used wrenches. I go to a flea market to sell 2-3 times a year and no one ever buys my old wrenches.
A spanner is a type of lever, more specifically a wrench, used for tightening and loosening nuts and bolts.