Cheshirechappie
Established Member
memzey":1m671z40 said:Just a quick question here on how people test their edge tools for their "sharp enough" standard after sharpening; I would count myself as a beginner as I've only been doing woodwork as a hobby for the past year or so. I sharpen freehand on some old oil stones I bought for 50p each at boot fairs and some charged leather glued to a block of wood. With a typical plane iron this takes me about a minute or so including the strop. I then attempt to dry shave some hairs on my arm. If I'm successful without pulling any hairs I think to myself "memzey that's sharp enough" then reassemble the plane and get cracking again. Is this what most people do as well?
I have three tests. The first is to look at the edge. If you can see a line of reflected light, it's not sharp enough. If you see nothing, it probably is. Test two is the 'ball of the thumb' test - just pass the ball of the thumb (very gently!) over the edge, and if it 'catches' the skin, it's sharp enough. If it slides over the skin without catching, it isn't. Test three is to use the tool for it's intended purpose, and see how it goes - you'll soon notice if it isn't performing as it should.
Must admit, I gave up arm-shaving years ago. I'm fairly sure it's just a bit of a show-off from master to apprentice, really; nobody does it 'for real' normally. Besides, it's too much bother peeling back woolies and shirt-sleeves on a cold day!