Hi All, I have a set of cheap crapy B&Q (spits over left shoulder) router bits which I use for rough work (the good bits I save for the final cut); they seem to keep an edge for (roughly) the first 3.2 seconds of use (well, maybe a little longer). Can anyone offer advice on sharpening these bits? When I bought them I considered them to be disposable, so any extension of life will be a bonus.
TIA.