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Shhhhharpening

Charlotte

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I inherited some chisels. They are basically in good nick save for the fact that they have been poorly stored and were missing large chunks of edge. The grinders at work have wonky wheels from metal bashing heathens sharpening welding rods as scribes. I have never been caught committing such acts of blasphemy. Anyhow, I put them on my belt sander. They now have no chips. They are also far enough from square that some look like skew chisels, with one exception they are not. One has a pissed handle, the lack of squareness suggests it is the sander platen that is out, although I will accept accusations of lack of skill/practice/eyesight with good grace.

I have access to a wonky belt sander, a kippered bench grinder and an angle grinder, how should I square them up for proper sharpening? The good news is that I've not cooked out their temper. Whether this may have happened previously, I'll find out in time.

Thanks!
 
I use a very fine permanent marker and scribe a line using a small Engineers square.
Grind carefully to that by eye.
You can make up a wooden jig to achieve the correct grinding angle.

Rod
 
How frighteningly obvious! Can freehand on stones ok, just didn't fancy grinding back so hard on them. Will acquire a fine marker tomorrow :-)
 
I have never ground a chisel on a wheel not wanting a concave bevel but it is possible my chisels have never been in such a state as to require that amount is steel removed.

I find a simple jig, the eclipse like this
honing_guide_IMG_0788.jpg

, and various grades of abrasive paper stuck to a thick piece of glass does for me.
 
Andyp":194w7jj8 said:
I have never ground a chisel on a wheel not wanting a concave bevel but it is possible my chisels have never been in such a state as to require that amount is steel removed.

I find a simple jig, the eclipse like this
honing_guide_IMG_0788.jpg

, and various grades of abrasive paper stuck to a thick piece of glass does for me.
:text-+1:
Keep on checking with a small square that the chisels are gradually becoming better. Sandpaper works well as does wet n'dry, but I use the 3M stuff from Workshop Heaven, starting with 100 micron which will remove steel at an eye watering rate - Rob
 
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