A couple of years ago I got some NOS Elliot Lucas 'Welders Pliers', which appear to be the same thing but with no plastic grips, so as they don't melt or get swarf and spatter stuck in them I suppose. They're nicely made, but not easy for me to use reguarly, stiff pivot and rather large for my arthritic fingers. I keep them in a vehicle tool roll, as they're top quality and I know they won't fail when I need them in an emergency.
I last used them half way across Bodmin Moor, by the roadside, in truly foul weather after breaking my Leatherman Tool pliers. They did the job easily, should have got them out first!