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Ferrules

When making simple hand tools, a ferrule is an important addition.
Steel Ferrule

The ferrule on the knife was made by heating a nut on punch, to a nice cherry red an then beating it with a hammer. This gave it a good angled inner surface that jams on tight to a wooden mortise. This makes for a stronger tool.

A ring at the back end of a tool can keep it from being destroyed by the process of wacking the tool with a mallet. Ferrules are important, and there are a lot of ways to make them.

Bob

10 comments to Ferrules

  • That is an awesome knife! Excellent shape and very nice style.
    Great tip on the ferrule. I will try that out.

  • Thanks, Richard, I do love a good striking knife! I just ordered some ferrules for the striking ends. Stainless Steel Rings from Ebay. http://jewelry.shop.ebay.com/items/?_nkw=steel&_sacat=64512&_fromfsb=&_trksid=m270&_odkw=lots&_osacat=64512

    Ornamental and solid. Reasonably inexpensive, and in assorted sizes. With the variations in ornamentation, you may even be able to tell chisels apart just from the ends.

    Bob

  • Skip J.

    “That is an awesome knife! Excellent shape and very nice style.Great tip on the ferrule. I will try that out.”

    It so happens that Bob has supplied me with one that looks just like that. It has a Bob Z. blade just like those in the photo. Just an occasional swipe across a diamond plate and it’s very sharp indeed!

    Notice that the handle is mesquite… very tough wood material. Considering the three parts and the assembly method, this thing is a “tank” of a knife!

    Yet is very light to handle, almost delicate seeming. There is no question of where the line is knifed with this beefy blade…. I carve with it, I open big packages with it; I just be careful not to drop it on it’s tip over concrete.

    Sooo, I gave my Veritas knife to my son…

    Skip

  • In fact, the knife in the picture, is your knife, Skip!

    I am pleased you like it.

    Apparently we both respect Japanese Tradition enough to have, so far, escaped the possible issues with this. ;)

    http://answers.yahoo.com/question/index?qid=20061215114506AAMVyL2

    Bob

  • Skip J.

    Mercy Bob… well… what a list! It’s a good thing we are not superstitious….

    Skip

  • Alex

    Where did you find those beautifull blades?

  • Here is where I sneak a critical bit of data into a comment. Hiding important information in my comments! Mwaaa-Haa-Haa-Ha.

    Bob Zajicek was the blade blank source. He offered a very nice price since they were being discontinued.

    I put a bevel on them and then used Oxpho Blue to put a wear and weather resistant surface on it. After treating it, steel wool doesn’t scratch the finish. It puts a really nice hard surface on the steel. I really like the dark look to the blade. :)

    Then I treated it with Ballistol to add even more rust resistance.

    Grinding these and keeping temper was way too much work. In the future, I will make them with tool steel still annealed and then temper them myself. Much less work this way.

    Bob

  • Alex

    You grinded the steel by yourself?
    Could you explain me the process you used?
    Which is the geometry of the blades?
    I think they are very beautifull.

  • I will have to make an article on the process for you. I will try to put it together this week!

    For a superb guide to clean grinding done simply, this one by Derek Cohen will give you a great starting place, http://www.inthewoodshop.com/WoodworkTechniques/TheSecretToCamberinBUPlaneBlades.html

    Bob

  • Alex

    Thank you very much, Bob.
    Your blog is full of interesting informations.

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