My local mechanic always burnt them out with the torch, then a quick go of the hacksaw to remove outer metal bit. Having a small fire and support the bit to be burnt over the flames will also do the job

Mornin Dull an warm Early start, solicitor then a bit of shopping Going to swap my bathroom radiator from 800btu towel rail to 2000btu radiator Bathroom is grey so have to decide on paint for the rad 🤔 Sunflower now at 9 feet Stay calm all 🙂

F.A.B.