Turned this today - its approx. 70mm diameter 130mm tall. Don't know what wood it is - found on side of road ages ago - can anyone tell me what it is please? I'm having trouble hollowing it out, I can only get about 50mm in before any tool I try starts juddering. I guess I haven't got the proper tools! Or is it a difficult wood to work? I've finished it in beeswax for now.