Hi Guys. Fully aware that I am the novice here, I would like to mention something about this concavity... since I havent seen it come up before in the thread. At the class I attended about how to do all this, this concavity is at least half the reason for useing a wheel in the first place. Once finished with the wheel, whetstones then are used to polish this away. The wheel leaves a bit of a cuff on the edge, and one starts on the low grit stone with a few pulling strokes to break this off, leaving only the clean edge. Then one starts the process of honning away the concavity... or at least much of it. When enough of this (or all of it) has dissapeared then the high grit stone is used to polish the back side to a mirror. The angled side of the mortise chisel was never on the wheel, and was only pulled and honned slightly in comparison to the amount done on the flat side. I'm not saying this is <<the correct>> way of doing things, because frankly I haven't a clue yet, but this is what I was shown and it did indeed give a very sharp and very easy to notch with edge. In the aftermath of that class however I must say I was suprised to learn that there they used a high speed wheel and made nothing of the importance of useing a slow speed whet wheel. Cheers RicB
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