Trying to imagine that Lozz,with difficulty,as the balance would be crap,
A photo would help greatly if possible.
Being`s we are on the subject of picks/mandrels,
The type of mandrel/pick available from Carters are roughly 20 pounds per handle and per pick head,they are the typical NCB issue,
The mandrels we used in the Small mines in South Wales were of the older type,longer picks,but much more slimline,with a paddle like handle,with an eye width of 3 3/4ins,varying slightly as being hand made,usually by the main manufacturer White House Bros of Cannock,
I have no didgy camera or otherwise i would post a few photos,as i make my own handles for these,as Carters wanted a minimum order of 500 to set up the machines,sadly there ain`t that number of Colliers left in South Wales.
Maybe Miner 85 will post a photo if he see`s this post.