What type of sandpaper for lapping chisels

Discussion in 'Tool Talk' started by lemonade, Sep 25, 2015.

  1. Antek

    Antek New Member

    Anything below 240 should never touch the edge tools! 60 is good for floor sanders. Have you ever seen 60 grit sharpening stone? 240-400 is what to be considered as coarse for sharpening. 400-600 medium and above 800 fine or super fine.
    Good quality 240 is very effective on hard metals, doesn't have to be wet and dry.
     
  2. Mr. Handyandy

    Mr. Handyandy Screwfix Select

    Personally, I think the OPs got P600 emery wet&dry, not P60 sandpaper.

    Mr. HandyAndy - Really
     
  3. lemonade

    lemonade Member

    It's klingspor P60 wet and dry.
     
  4. CGN

    CGN Screwfix Select

    Not particularly common since 'open coat' papers are generally used in the lower grades, especially regarding car bodywork and general roughing out and shaping. These grades are used dry as you don't want to introduce any moisture when shaping filler etc.

    A tad off topic possibly, but 'open coat' grades don't necessarily tally with wet and dry grades if my memory serves me!

    Anyway...just sharpen it. I think people get too an*l when it comes to putting an edge on a chisel...as Chippie mentioned early on. Sharpen it...and get the job done ;) :rolleyes:
     
  5. chippie244

    chippie244 Super Member

    Klingspor P60 wet and dry does exist but I wouldn't let it anywhere near my chisels.
     
  6. Ryluer

    Ryluer Well-Known Member

    If its polishing his chisels then it must be 600 as HA says.
    A photograph of the chisel and sandpaper would settle it.
     
  7. goldenboy

    goldenboy Super Member

    I sharpen my everyday chisels and irons on a little bench grinder and polish them up with soap on a buffing wheel. I don't bother with angles or lapping or anything. A Zimbawean guy showed me and it produces crazy sharp results with very little time taken. I wouldn't do it on my best ones but working ones no problem.
     
  8. KIAB

    KIAB Super Member

    Just need to be careful not to take the temper out of the blade by getting it too hot.
     
  9. goldenboy

    goldenboy Super Member

    Just letting it cool a bit while grinding sorts that. I have been told that dunking hot chisels in cold water is very bad for them. Microfractures the steel apparently.
     
  10. lemonade

    lemonade Member

    I think the wet and dry I'm using is silicon carbide so would it be better to use aluminium oxide.
     
  11. KIAB

    KIAB Super Member

    Use a 120 grit aluminium oxide paper to sharpen.
     
  12. lemonade

    lemonade Member

    I'm trying to lap the back of the chisel. I've got microfinishing film to sharpen the chisel.
     
  13. goldenboy

    goldenboy Super Member

    Just on this topic over the years I have found there really are two kinds of sharpening that get done. Sharpening for show and sharpening for go.

    Seen guys spend all day sharpening up a set and produce garbage work and I have seen people take minutes on a set and produce great work.

    It doesn't matter to me how they get sharp as long as they are sharp.
     

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