Lonsdale73
Established Member
When hollowing out end grain, how do I get the sides parallel? I need a hole 36mm in diameter, approx 10mm deep and my largest drill bit is a 35mm Forstner. I thought I could use that to hog out most of it away and the remaining mil or so on the lathe. I'm there on the width on the outside face but the walls curve inwards like a bowl. Not sure if I'm using the wrong tool or (most likely) right tool wrongly.