Tom, l can confirm your presentation 
also, his workshop is also a gym, l have had the honor of testing out his arm wresling training torture devices.
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Greetings Goran , uff, dry wood causes problems, and not only for screw chippers, but also knife chippers have problems with dry wood, especially if the wood is oak, cherry, chestnut, … The Remet R120 knife chipper (which is supposed to cut up to 120 mm thick) can cut (with difficulty) hard dry wood up to 30 mm, anything more is impossible to cut, with the R80 screw chipper it is similar. (I mean the thickness of the wooden pieces that are created when trimming boards). With a knife chipper, the problem arises with the cutting angle, when the knives start to cut into the hard surface of the wood, which is too large for thicker wood, so the knives literally only squeeze the wood sideways and the chipper stops instantly. With a screw chipper, there is a lot of friction when the blade cuts into hard wood, but this can be reduced somewhat by “lubricating” it with water.
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I mustn’t disappoint Mr. Tom too much, so I lit a blacksmith’s hearth and heated the shaft with the intention of tempering the hardened surface, so that the weld wouldn’t break. I tried to adjust the helices of the blade so that each next one would have a larger gap for the thickness of the blade, so that pieces of wood wouldn’t get stuck between the blade wraps,…
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I am just going to go on the record, and say I wish I had one of those today because of our recent storm. 
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Again a precision job Tone! A pain to aline the blades, but not for Dr Tone. And detail with the pitch. My had is off. Top job, again
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What Joep said. Looks perfect.
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I’ve done that quality of work but then morning comes and I have to wake up. 
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My thought as well when I saw the cutting screw in the picture: very professional.
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