As someone who uses handtools for a living for 45 years now. Cheap tools just do not work at all. They may look the same but the fall down in actual use. I just do not waste MY time which is more costly than a money saved on a cheap tool.The more expensive tweesers are made from a far beter quality stainles spring steel varying from Chrome Vanadium to titanium. Made with more care and precision. The cheapo's are made from a lower quality grade steel that is much softer. Tho in my experience both can be a one in a lifetime buy.
With the cheap ones you sometimes need some recoursfullness to tackle quality issues.. For example what could happen is the the spotweld snaps and than you have 2 uselass parts. It happened to my bend tweesers and i solveld it like this.
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Using a good tool is half the work a professional tends to say.. 100% true, but using common sence with for what and how often you use it, than going cheap can save you quite a bit of money. Doing a simple calculus, bying an $80 dollar tool that lasts 10 years the least. Or buy a simmular $5 replica that lasts you a year. 10x5 is still $50 and a new one each year for the next 10 years. Buying the $80, you already lost $30 and it wears off slowly, after that you need to spend $80 again, maybe more due to economical inflation..