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  • 3 Post By Shelley
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Thread: Sharpening a chisel

  1. #1
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    Sharpening a chisel

    So the other day, at the flea markets I picked up an old rusted chisel, it was $2, too rusted to see the brand name.

    I took it home, cleaned it up, got most of the paint and rust off and it turns out to be a Ward and Payne knife, very good Sheffield tool company, eventually acquired by Wilkinson sword. Started in 1803 and become Ward and P in 1850 or so, this one looks to be from the 1950’s which means it was made from A2, which Ward had absolutely nailed the heat treatment for.

    However this one showed a distinct lack of care, the grind was off, the edge was chipped and the angle was set at 35 degrees, I personally prefer my chisels to be 25, but I can do any angle.

    So first I set the tormek at 220 grit and got rid of the damage:
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    Bit more work at 220 and it was done
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    Then I switched to 1000 grit and got rid of the worst of the 220 scratch pattern
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    Tad more work
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    Then to finish I dropped in a 4000 grit wheel on the tormek
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    Mirror finish.

    Nice and sharp now, bargain at $2.

    By the way I sharpen chisels, same price as I do knives, $5 per piece, can do planer blades and scissors too.

    Shelley 021727546
    308, Micky Duck and Cordite like this.

  2. #2
    Member Happy Jack's Avatar
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    I sharpen my working chisels with a slightly shallower angle and always by hand on my oilstone as I have done for 30 years. That is a good looking finish though.
    Micky Duck likes this.

  3. #3
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    When i was apprentice a older guy offered to take home my chisel's to give them a once over. Always used to carry one chisel in your apron. some how it was that sharp it cut through the leather as i was bending over doing a job and cut into my leg.
    40mm likes this.

  4. #4
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    Quote Originally Posted by Happy Jack View Post
    I sharpen my working chisels with a slightly shallower angle and always by hand on my oilstone as I have done for 30 years. That is a good looking finish though.
    What angle do you go for, I have heard some people go for 20 for a hand held chisel, others go for 30 for a hammer hit chisel, I usually set mine to 25 as a happy medium, I can do full flat grinds but have found a slight hollow grind seems to get better results.

    I do not round the edges as seems popular overseas but go straight from edge to edge, seems to work well, I can do a slight secondary edge but have never needed to, sharpen a little often seems key to me, but occasionally you need to go back to basics as with this chisel.

    I now need to find someone with a lathe to make a new handle.

  5. #5
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    My old man was a whizz on sharpening chisels.
    Had three boys using chisels (translation using as a universal tool for everything).
    He just used a oil stone,was pretty good on knives too but left us to do our own the chisels were his.

  6. #6
    Member 40mm's Avatar
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    NIce, I almost brought a Tormek.

    How is the back of the chisel? any pitting?
    And did it get a hone on a stone after you ground it?
    PaulNZ likes this.
    Use enough gun

  7. #7
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    Looking good. Did you flatten the back? Polishing pitting out of the back seems to take the most time for me, but without doing that a mirror bevel doesn't translate to an excellent edge.

    Edit: 40mm beat me to it...
    Last edited by PaulNZ; 23-07-2020 at 08:55 PM.
    40mm likes this.

  8. #8
    Member Happy Jack's Avatar
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    I don't really know what angle its all just done by eye but it does look shallower than that, mine get sharpened every time they are used, a throwback to working on a joinery bench with the stone to hand I guess. Same with my hand planes constant sharpening, actually need a new blade for my block plane its so worn down. I keep chisels straight with a slight curve on plane irons, a rounded edge chisel would be near useless I reckon.

  9. #9
    Member 40mm's Avatar
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    Quote Originally Posted by Happy Jack View Post
    I don't really know what angle its all just done by eye but it does look shallower than that, mine get sharpened every time they are used, a throwback to working on a joinery bench with the stone to hand I guess. Same with my hand planes constant sharpening, actually need a new blade for my block plane its so worn down. I keep chisels straight with a slight curve on plane irons, a rounded edge chisel would be near useless I reckon.
    When you say rounded edge on a chisel, do you mean hollow ground from the small diameter grinding wheel?
    Use enough gun

  10. #10
    Member Happy Jack's Avatar
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    Convex rather than concave I think they mean

  11. #11
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    Nice surprise for $2. Ready for another 80 years at least.
    Cordite likes this.

  12. #12
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    Quote Originally Posted by stevodog View Post
    Nice surprise for $2. Ready for another 80 years at least.
    Nice one. Something really sad about neglected quality tools.
    An itch ... is ... a desire to scratch

  13. #13
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    I do the back with sandpaper on a flat glass plate, wet and dry start with 120 and work my way up to 1200, there is a tiny bit of pitting left now, you can see it but can’t feel it.

    My mate likes to round the edges on chisels like people do on planes, said that was just the way he was taught (Aussie), frustrating as hell as I have to go around and fix them all...
    PaulNZ likes this.

 

 

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