How cold is too cold?

[Gert-Jan]

I thought about this yesteday. I was giving a bit of metal a hard time with a few new hammers. It was freezing a bit. (-2 degree Celcius) When I was watching closely I felt a breeze of the slapper and accually felt nice to cool down a bit. I forgot my workshop shoes, which not only prevent from sharp stuff piercing my feets. They also keep my feets warm, that's confy. I don't do any machanics on my classic car at this temperature. Every spanner and engine part is cold! I'm standing still a lot of the time when doing mechanics. Standing still means cold, keep hammering!