Weight = Body weight + hipsSpeed = 30 ft/secondHardness = Does brick wallsBit of a willy wave, and nowt to do with mining, sorry. Its a genuine hardened fist from 'old school' karate. Striking surface is the two big knuckles which are very hard. Through continued pounding something happens to the bone and it becomes a bit like iron. No kidding.
This photograph is by royfellows and was uploaded January 6th 2020. © royfellows please do not copy or distribute without prior express permission.