I have a set of Mechanix and Set Wear Hot Hands. The Hot Hands are the best out there for focusing, I have used them to cook even. 450F
cookie sheet and no problems. The Mechanix don't offer much in the way of heat protection. You will find it feels like they are melting to your skin. The reason I have both is because I use the Hot Hands strictly for focusing and handling of lamps. I don't want to wreck a $50 per of gloves pushing road cases. I have my $20 Mechanix for that.