Hi there, we have all at one point ( pardon the pun ) re-tipped an older knife - its easy if you start off in the right direction...
First of all - when it comes to knives -
ALWAYS leave the Grinder under the bench - there is
NO place for use of a Grinder on a knife in any time of its life!
I use a Stone ( Sharpening stone ) and work my blade on the stone - check out my drawings and they show where to take your blade back - leave the actual
blade edge alone - work the curve of the Sheeps-foot
back to the new tip point - do this by holding your blade upside down and taking it one stroke at a time with your stone on the bench, take it easy and
slowly blend in your new shape back into the ending of the curve/ spine of the blade.
Use a vivid marker to mark out the new line on the blade as a guide when using the stone - you can finish with fine wet and dry papers say 320g 400g 600g as a finisher after the stone work - then simply put a new edge on the knife - without a grinder :-0
Use masking tape to wrap your blade up just over half way - this is so you can grip the blade - remember you are working the top of the blade soif you are pressing the back of the blade-it will want to close of course - just a quick mention of that for safety.
Please see my very poor but hopefully clear diagrams below......
