I shop HF first, and usually get decent quality stuff.
Burned up a 4.5" angle grinder in 1 hour, so they replaced it no questions asked and the new one has been working fine.

Spot Weld Cutter bit is worth the $5. I should get about 40 - 50 cuts from it. It works well.

Their Poly Carbide 4.5" Abrasive Wheel works as well as the 3M Abrasive Wheel and is only $5. It erases paint with hardly any metal removal.

Has anyone tried their small hand sandblaster for small spot blasting small jobs?