Allen wrenches are used to tighten and loosen Allen screws.
Yes, they are the same.
Torx or Allen wrenches get more torque (pressure) on the bolt.
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.
metric allen wrenches, star sockets and bits, and metric sockets
You haven' said what for. Buy a set of MM Allen wrenches then you can't go wrong.
No, that's something that even the simplest mechanic wouldn't need.
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.
To remove the brake caliber bolt on a 2008 Escape, you will need a 9 mm wrench. These types of wrenches are also known as hex keys or Allen wrenches.
There are many kinds of wrenches. Perhaps the most common are open end wrenches. Then you have box wrenches, pipe wrenches, adjustable wrenches, combination wrenches and many others.
Hydraulic cylinders .
Flare nut wrenches are used on fuel lines. Regular sockets are used on head bolts.
Brands of impact wrenches include: Kawasaki, Ingersoll Rand, Chicago Electric, Dewalt. The most famous is Ingersoll Rand, also most used. Known for its small, but powerful electric wrenches.