FWIW, I learned this approach while working in the trades as a welder. You have consumables in stock and ready to go, and that includes extra grinders. Some tools you do take the time and effort to really take care of, of course, but a lot more than you might think are in the cattle not pet category of things.
Similar for professional kitchens. They use cheap pots, pans, knives, etc. then replace them when needed. No special Damascus steel knives and copper ply pans, just functional cost effective easy to replace stuff.
...all the professional kitchens I've seen use very nice professional kitchen equipment. They don't use damascus steel knives because that doesn't offer any advantage in function, but they aren't using cheap anything. Pots, pans, and knives work for a very long time and it doesn't make sense spending little to not get good ones. You can't get heavy guage stainless pots and pans for cheap, ply or no ply. The knives are the most used tool in food prep - they spend money on quality steel and good ergonomics so they dont have to work harder than they need to. In some places people bring their own knives.
When you sharpen a knife several times a day it’s going to wear out fast, even if it’s expensive. Pots and pans get bashed about and dropped, which damages even expensive pans.
Maybe it’s different in the UK but we never used fancy knives or cookware in the kitchens I’ve worked.
thats why you use quality knives that need sharpening less often. You still sharpen them because that makes the work take less time and effort. They're not fancy they're just high end. They're not damascus steel because that doesn't offer any actual advantages. Thats why you can get a shitty henkels knife for $50 anywhere you look, but the actual zwilling pro chef's knife is 3x the price - because you don't need to sharpen it as often - it keeps the edge for longer.
It's not a question of fancy. Regular looking pans and pots made from ultra thick gauge stainless steel dont look fancy, but they survive being dropped on the ground without issue.
You have a big miscomprehension if you think expensive = fancy. Not fancy, rather ultra utilitarian but high quality.
I'm trying to learn welding/metal working so I can combine it with woodworking for furniture making. Meaning I know shit about tools compared to a professional.
But I've bought two grinders and have an ancient cheap one from father in-law. My cheap Metabo is relatively quiet and smooth. Cheap Lidl one is loud and jerky. Ancient one I've just thrown away at how bad it was to use. Recently I had to grind some tubing for > hour and my wrists felt it even with the Metabo entry level. Supposedly the pro versions have antivibration, better balanced, speed control, etc.
My point being if I was using this 5 days a week for >1h I'd invest in ease of use/comfort/safety - no ? I'd probably have a few throwaway ones for backup.
First, buy a separate handle that you like the feel of. They're dirt simple to swap around between tools. If you're in a large shop, make sure it stays in your lockbox overnight so that it doesn't grow feet.
Second, although honestly more important, make sure you are using the right wheel for the job, with the right pressure (lighter than almost everything thinks), and stay focused on using either the edge or the face, depending on type. This will keep things smoother, slow disc changes, and improve safety by reducing the risk of disc shatter. Detailed explanation: https://www.youtube.com/watch?v=_n0TSF1i5os&t=162s
Hope that helps.
[edit]- When it comes to welding, I strongly recommend learning stick first, even before MIG. It gives you much better practice learning how to control the puddle without spewing metal everywhere. Bonus points in that it is also very inexpensive, and the welds themselves are usually stronger than MIG. Only disadvantage is speed, but for the types of projects you mentioned, that's not much of an issue. This guy's channel is great: https://www.youtube.com/watch?v=pMtqDWUpJds