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Thread: What is the advantage of a DMT over a Norton lapping stone?

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    Senior Member ccase39's Avatar
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    Default What is the advantage of a DMT over a Norton lapping stone?

    Besides the fact you don't need to lap it. Btw how do you lap a Norton lapping stone? Sandpaper and granite?

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    Senior Member mjsorkin's Avatar
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    Default What is the advantage of a DMT over a Norton lapping stone?

    I have both.

    The norton is rougher, and maybe quicker than the dmt. IME it tears into any stone fast. It leaves a rough surface.

    The dmt is very versatile and leaves a great surface for honing.

    If I could have only one it would be the dmt.
    “there is the danger that the ignorant man may easily underdose himself and by exposing his microbes to nonlethal quantities of the drug make them resistant.”---Fleming

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    Just a guy with free time.
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    The DMT is very verstatile. One guy here uses it for some scale work. It can be used as a slurrying plate for any stone pretty much. It doesn't require the use of sandpaper to be ready. It's always dead flat. It doesn't take up as much space. It requires no soaking(not actually sure about the Norton lapping plate there). It'll half or quarter your sandpaper expenditures. I'm sure there are other differences. These are just off the top of my head.

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    Senior Member sheajohnw's Avatar
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    The DMT is much better for flattening stones. It is also great for knife bevels and razor chip repairs, restoration work.
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    At this point in time... gssixgun's Avatar
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    Everything above and No Grit transfer... The Norton leaves BIG grit everwhere, nothing is worse than taking a beautiful polished W&B wedge to a Norton 1k after the Norton Lapping Stone and getting a nice long scratch right through the mirror finish

    Yep been there done that

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    Senior Member IamSt8ght's Avatar
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    In addition to lapping, I use the DMT to trim the claws of my Labrador Retriever, the edge to help me draw straight lines for our hearts score pad, and it was perfect for putting a super sharp edge on our letter opener (see below).
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    Senior Member mjsorkin's Avatar
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    Default What is the advantage of a DMT over a Norton lapping stone?

    Quote Originally Posted by gssixgun View Post
    Everything above and No Grit transfer... The Norton leaves BIG grit everwhere, nothing is worse than taking a beautiful polished W&B wedge to a Norton 1k after the Norton Lapping Stone and getting a nice long scratch right through the mirror finish

    Yep been there done that
    This is very true. Before I got the dmt I used to scrub stones after lapping.

    Also this brings up another point. You are lapping your norton plate every time you use it. It gets flattened by your norton set.

    Michael
    “there is the danger that the ignorant man may easily underdose himself and by exposing his microbes to nonlethal quantities of the drug make them resistant.”---Fleming

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    Senior Member Bayamontate's Avatar
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    I used the Norton lapping stone until I had to lap it, what a PITA. I use W/D sandpaper for lapping now.

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      Lynn's Avatar
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    I like the DMT because I can use it on all my hones. The Norton plate seems to work best just with the Nortons. I do find that part of the key to using the plate though is that you don't need to use much pressure to get the job done.

    Have fun
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    Can you use a DMT 325 to lap a norton 220? For the 220/1k combo stone? I would think the lower grit would work down the DMT more than the 220 norton...

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