Do You have an Outie or an Innie?

Illustration, Adze Bevels_NEW

I have some general information on tool selection here at my website, but I’d like to focus more specifically on the adze in this post.  It is probably the single most expensive tool used for this work, so it pays to choose wisely. After all, your grandchildren might be using it someday.  I only know two adzes well, but they’ve taught me some things about adze design.

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My Hans Karlsson Adze head with custom handle

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Edge-on view of my Hans Karlsson adze

I’ll start by showing some photos of the adze I use the majority of the time.  The adze head is made by Hans Karlsson in Sweden.  The Karlsson’s have a small family forge in Sweden that makes excellent tools.  They are designed well, with much consideration for how they will be used.  Mine was purchased years ago through Drew Langsner’s online Country Workshops store.  It is marked H-161 there.  As far as I can tell, it is the same one available from these suppliers based in the U.K.: Woodsmith and  Woodland Craft Supplies.  They have other adzes there of various sizes made by HK and other good makers.

My HK adze arrived sharp and ready to go (except for the lack of a handle, but that was my choice).  It has an outer bevel that is maybe declined eight to ten degrees from the line of the head.  A shorter inner bevel strengthens the edge by making the total edge angle around thirty degrees.  It enters the wood easily and the weight of the tool propels the edge through.  The steel holds an edge under heavy blows, and sharpens easily.  All I have done through many sharpening is to maintain it as it came.

My other adze is a good example of how much work will be involved if you buy something poorly designed for bowl carving (even if the product description says “perfect for making bowls”).  Before I had any idea what to buy, I purchased this adze made by Pfeil Swiss Made.  Their carving gouges are excellent, but they missed the mark on the design of this tool.

The handle is poorly designed in relation to the geometry of the head, and there is no outside bevel at all.  It lacks the concentrated weight of the HK that helps propel the edge through the wood.  It doesn’t arrive very sharp. In spite of all that, it will indeed remove wood from the hollow of a bowl; I carved some bowls with it.  It took lots of tweaking to get it to work better.

After grinding away a lot of steel (carefully avoiding overheating) and adding a new handle, I now have a nice little adze perfect for tight hollows due to a combination of three factors:  a tight sweep of the edge, a tight curve along the top of the adze, and a pronounced outer bevel (now).  I guess you could say it has a tighter turning radius than the HK, but the HK provides a much smoother ride.

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There may be some uses for which an adze with an outer bevel is undesirable.  For hollowing bowls, you want some degree of outer bevel.  I hope my drawing at the top offers some explanation as to why.  Another way to think about it is like this: an adze is like a carving gouge on a stick.  When used for carving work, gouges have outer bevels.  They provide the carver with the freedom to control the course of the tool and come into, and out of, a hollow.

For bowl carving, outies are the best.

One last thought.  If you can’t afford a good adze, but you want to start bowl carving, consider buying a gouge instead.  Better to buy a good gouge than a bad adze.  You’ll still need that gouge after you save enough for a good adze anyway.  You can hog away wood pretty quickly with a large gouge and a mallet.  I’d suggest something like a #7 sweep bent gouge (long bent) 25-35 mm wide.  It might also be a good option if you don’t feel safe swinging an adze.

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13 Responses to Do You have an Outie or an Innie?

  1. Paul Anderson says:

    I also have the Hans Karlsson and Pfeil, which has been reground with an outer bevel for bowl carving. I prefer the HK, but had to wait 4 or 5 months for my order for the HK to arrive so started with a pfeil. I have not put a different handle on th pfeil yet which would make a big difference. What did you use for the Pfeil handle you made? Did you find a hatchet handle and carve it to fit?

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  2. Dave Fisher says:

    Paul,
    For my handles, I just split out a piece of firewood and shape it with a hatchet and drawknife. As it gets smaller I can see how it feels in my hand. These handles aren’t long like axe handles, so any harder wood will do. My HK handle is oak, the Pfeil is hickory. I originally made the Pfeil handle for something else (can’t remember), then adapted it. Just make sure the handle is bone dry before final fitting to the adze head.

    Liked by 1 person

  3. Cheryl says:

    Thank you. Great and helpful post.

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  4. Ron Sites says:

    Great information! Thanks for posting, it really helps us who are aspiring bowl carvers.

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  5. Pingback: Hollowing with an Adze | David Fisher, Carving Explorations

  6. Tone says:

    David, I am repeatedly awe-struck by the beauty of your bowls. Particularly the aesthetics of shape & proportion but also the finish and, sometimes, intricate decorative carving. The obvious point that had not struck me until I saw your sketches of the adze, above, is that you are a highly accomplished artist, as well as consummate craftsman.

    I have so many questions but will make do thanking you for starting the blog & sharing you knowledge & experience. 😉

    Liked by 1 person

  7. Pingback: The Great Adze Shortage of ’15 | David Fisher, Carving Explorations

  8. redbeardsart says:

    Excellent post David,,, I have three adzes,,, a west coast Haida lipped adze (Innie),,, a Gutter adze (Innie) and a Grandsfors Bruk a Swedish adze (Outie) It came sharp yet needed a bit of tweaking to the inside bevel mostly ,,,
    The explanation and illustration are spot on,,, The best part was the recommendation to use a large bent gouge if you don’t have easy access to these expensive tools,,, I made due with a large bent gouge for many years,,,I also used power attachments to my side grinder for many years for the roughing out,,, It worked,,, Yet I didn’t enjoy it as much as doing it all by hand let alone the safety issue, noise, etc,,, I think it is important to be making bowls by hand using just simple hand tools that did improve my skills as well,,, if i have to sweat a little it will improve my motivation to get efficient with my energy use,,, and made me come up with ways to make the process flow better thus making it a whole lot easier to justify the expenses of a good adze,,, The choice was obvious as you so well explained that an “OUTIE” works best for inside hollowing of bowls,,, For those exact reasons you explained
    I would like to add that the Haida lipped adze is good for the outside hueing because it is an “INNIE” designed for convex or flat work,,, it is light and does take some practice to use efficiently ,,,It won’t replace my carving axe in the process ,,, It just gives me another way to get closer the final shaping of the outside of the bowl that i usually do with a double edged west Coast style knife rather than a gouge,,, but that would be a whole new post,,,
    Thank you for making this so clear,,, Cheers HKL

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  9. Tone says:

    HK 600g 5cm: I have a smaller HK adze than David I think, mine is the 600g 5cm diameter adze (although HK now also sell a tiny adze that is even smaller). It has both an outie & innie bevel, although I tend to think of it as primarily an outie. It works brilliantly well.

    HK 700g: I make mainly large bowls, so sometimes think perhaps I should have got the 700g HK adze with the slightly wider, slightly flatten cutting edge as used by David. It seems designed for the sort of bowls I prefer to make. The extra mass is supposed to be insignificant in feel and would likely help hollowing larger, tougher blanks (e.g. oak) – and would likely balance the larger cutting edge. But instead I opted to buy a much larger adze by Czech manufacturer Narex (renowned for their chisels) for half the price:

    Narex 2 handed adze: I bought one of these (http://www.amazon.co.uk/gp/product/B00JECU41K/ref=as_li_tl?ie=UTF8&camp=1634&creative=19450&creativeASIN=B00JECU41K&linkCode=as2&tag=various02-21). It is a pure outie and works brilliantly well – as an initial hollowing adze for large bowls, it is very fast & effective. It has a 7cm cutting diameter & supposedly weighs 1.5kg in total (I’d estimate the head to be about 900g-1000g). They are not currently manufactured as the Narex steel is notoriously hard to weld well, so they need to sort that out somehow – but there are still some available in shops & on the web (got mine from C.W. Tyzack (yes, that Tyzack! – at least it was). One of their smaller 1 handed adzes failed at the weld, according to an amazon.com review. Mine has signs of porous welds but not that much (being a larger tool probably helps); I got a former professional welder to look it over for me, he said not to worry, it is a common problem and as long as there isn’t too much it is fine. I’ve made 2 bowls with it so far and it makes me smile when I use it 🙂

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  10. Tone says:

    BTW I held the small Gransfors Bruks adze a few years ago. It is more expensive than the HK adzes but comes with a good leather edge guard. The head is about 800-1000g; significantly larger & heavier than my 600g HK adze. For big bowls, that mass probably helps but that is a lot of mass to hold in one hand, even if you support your wrist with the other hand. Probably not ideal for the small & lightly built.

    The Narex adze is of similar or greater mass than the Gransfors Bruks adze but with the longer handle makes for less strain – although I often end up using it choked up & one handed (the handle is very big near the head – so not ideal). I suppose I could one day fit a short handle (as Wille Sunqvist appears to have done with his large, re-steeled, favorite adze) or shave the handle near the head.

    Of course, Gransfor Bruks also make (what I am sure are wonderful) large, 2 handed gutter adzes too – for 3x the price of the Narex. HK also make a slightly larger 2 handed adze (800g head I think) – which might be ideal for bowl making, certainly Countryworkshops in N.Carolina used to recommend it (& probably still do) over the smaller single handed adzes.

    With a 2-handed adze, some kind of low-bench is required/advisable. I use my chopping block with a big old tire screwed on top, Norwegian-style. But when using a 1-handed adze, I use my comfortably high Robin Wood “Bowlmate”, with opposing wedges to keep the blank secure.With either I walk around the blank and work from different positions.

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  11. taejun jung says:

    Thank you. I study many thing in this article about adze and sharpening.
    Yesterday, i look for proper adze for bowl carving.
    And i found adze with inner bevel!
    so, i thought it was strange.
    May be, it makes adze deeply embedded in wood.

    Now, i can confirm my thought through your article.

    May be, i think i will come to your blog very often^^
    thank you
    (and, if you don’t mind, can i use your sketch at top of the article??)

    Like

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