These are good enough for me. Have about 4 sets and never had one bend and I use to make watch part pen blanks with a arbor press. I use for pin chucks, I use for sanding on a lathe, I use for disassembly of kits. They do what I need them to do. Get on sale with coupon and go pick up no freight charge. But to each their own as they say.
HF is about 28 miles away. The good news is that it is across the street from Woodcraft and Ollie's Bargain Outlet. The wife goes with me to HF to see what we need or can get real cheap. Then we split up- she goes to Ollie's and I go to Woodcraft. When she is done, she comes to WC to see how much I have spent.
My experience prompted me to have both metric and imperial sets that I use in my blank squaring device for the best accuracy,those small differences are important to me.