I personally think that all craftsman tools are better than snap on.
A typical beginning automotive mechanic should have several sets of socket sets, wrenches, hex wrenches, screwdrivers, pliers, hammers, small electrical tools (drills, etc.), and a carjack.
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.
There is no set amount of tools in a tool set for a mechanic. The amounts vary from merchant to merchant. Usually wrenches, screwdrivers, pliers, socket sets and ratchets are included.
A range of wrenches going from 3/16 up to 3/4 inch , composing 10-12 wrenches is usually considered a complete set. Many mechanics have these sets in SAE and metric and in flat, box and ratchet.
Many tradespeople in all facets of industry use wrenches. They are widely used by auto mechanics, aircraft technicians, hydro workers, electricians, plumbers, bicycle mechanics, small engine technicians, truck mechanics, and many other people. Most of us have at least two sets, SAE and Metric wrenches plus an adjustable or crescent wrench. There are many kinds of specialist wrenches too.
Wrench sets can be purchased online, at local hardware stores or at automotive equipment stores. If you are a professional mechanic, you can also purchase quality wrenches from Craftsman or other door to door salesmen who service your garage by truck. You will find a variety of wrenches available from Sears both in the store and on line.
Copper fireplace sets are better in sense that it has a higher melting point than brass. On the other hand copper has a more dull color than brass and is harder to polish. Since the sets will be outside away from the fire, brass sets are more beautiful and easier to clean.
If you are doing serious work on cars ALL types of wrenches are required.To work effectively on any modern car you need complete sets of metric and SAE wrenches from 1/4 ( 6mm) to 1 inch (25mm) and both metric and SAE Allen keys from 1/8 ( 3mm) to 3/8 (10mm). Having Torx from 10 to 45 also helps.
When you increase the amounts of sets, your body's endurance will get better. Your workouts will be more intense and fatigue can hit much easier. It is the same things as it is with repetitions - more doesn't always mean better. If your goal is to maximize your muscle growth, I would recommend doing three sets of five repetitions or five sets of five repetitions.
Yes, because then the icing sets.
In some cases you can use a 1/2 for a 13 and a 9/16 for a 14 but they are not exactly the same ( that's why they make metric and American sets ). You run the risk of stripping the bolt/nut when you use the wrong wrench.
I've always been taught that multiple sets is a better way to go. It spreads the work out across more time, increasing the aerobic activity, as well as giving you more reps.