I'll stop arguing with Kevin and let the thread get back to machining.
Just to show everyone else what we are arguing about I did a quick FEA of the wrench webbing and solid. You will notice they both came out the exact same. They both fail at the same point with the same load. I don't have enough information on the OPs wrench to actually figure out how much torque you could put on either one. Once you reach the yield strength of the material the failure modes are very different.
I don't know every machinist, but I grew up in machine shops and was trained by some incredible people.
I'm a hobbyist at best in the machining world, but
I currently employ a master machinist in my consulting job and had two machinists in my previous government job. You would be run out of any of their shops for using a wrench as a hammer.
There is a reason there is a tool called a machinists hammer. The OP made a fine example. I also design tools, tooling, and processes for industry. I know a machine operator can abuse anything. I also don't need to impress you. companies pay me a lot of money for that education and experience.
Back to the original topic.
And on your drawing you show thicker sides, than on the OP's wrench. Huge difference. I'm not going to play you show me your **** and I'll show you mine. I've worked with some of the best in the aircraft industry, and I've called out some of the best with their analysis on their designs, and was correct. So I don't play that game.
As far as a machinist/master machinist.....read back through anything I posted and show me where I said to use a wrench as a hammer. I didn't. I have thousands of dollars worth of machinist tools, both made and bought. All precision. BTW....I also have hammers. Your term "machinist hammer" is a misnomer. A ball pein can be used for the same thing. I have plastric tipped hammers, rubber deadblow hammers, and various size ball peins. Wrenches are used to tighten and loosen bolts. If a machinist is working on dies, he best have some wrenches that will hold up.
Again, this has nothing against the OP, what it has all to do with though is machining and the design of the tool. The OP is a relatively new machinist that has some cool designs, but also some impractical designs, that I was pointing out. You are a desk jockey that has been around machinist and machine shops, and are a hobby machinist. There is a huge difference between that and the real world. And Finite Analysis, is not always correct.
As for the OP, I was giving him some good advice. I have trained many machinist to become Tool & Die Makers which is a hard profession to get into. Of the thousands of dollars of tools I still have, I have given away more than that in tools to help ones get started in the profession. I've made parts that others didn't have a clue how to make or were afraid to attempt it. I worked with design engineers every day. I was a desk jockey when I was in Tool Design, and didn't like the desk job. I liked making something out of nothing and putting the parts on something I would never see or afford. I've either made parts or made the tooling for parts for more aircraft than you would ever see. I've made the prototype, then the tooling, then the parts for the Hellfire Missles. I machined the housings for the refueling lights for the F117 Stealth Nighthawks that had a +/-.002 tolerance. I've machined parts for the B-2 Spirits. I've machined the prototypes and made the tooling for the PSU units on commercial aircraft along with the external lighting on the Boeing Aircraft.
So yea, I know a little about design, manufacturing, and tolerances. And one thing I will never do is give someone starting out in the trade any wrong advice. And I'll go up any machinist and will argue my point with any engineer when I see something wrong that can fail. If the OP loves what he does, he can definitely work his way up into a good paying job in T&D which there is a shortage of in the United Stated. But he has to perfect his work, and he has to outshine his coworkers. A hobby machinist / desk jockey that has never worked beside a true machinist day in and day out for 12 hours a day, doesn't have a clue.
Again, no offense to you, and definitely no offense to the OP as he is off to a good start if he truly has the passion for doing what he is doing. But just like in any job, there will always be constructive criticism.
I'm not trying to argue with you to make it clear, but damn dude. I do know a little what I'm talking about. I've worked over 30+ years in tool design, tool & die, and as a liaison M.E. multiple times in the aircraft industry. Not trying to discredit you, but don't discredit me either.
Awesome design on the tools, who makes their own sockets? that is sweeeeeeeet! You need to make a cool tool board now to display them on, they are too purdy to put in a toolbox 
