sharpening LN chisel plane


Well-known member

You can and should flatten the back or at least enough to remove the burr. The use of Ruler method that is up to you.  I don't use any ruler method for the back of irons are flat.  In the old days when the back of plneirons weren't flat, than I would understand the use of the ruler method.  That said whatever gets you to work quicker.


Mark Maleski

Mark, It seems to me that the ruler trick is handy when restoring a vintage blade that you don't want to spend an hour flattening, but not useful otherwise.  A L-N blade should be already flat, so the ruler trick gives no benefit, and once done requires you to use it from then on.  I don't have a chisel plane but have plenty of other L-N planes, and I've never needed to spend any meaningful time flattening the back on any.

I guess my answer is redundant with Freddy's, but two opinions are better than just one, hey?

Mark Maleski