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    Japan toolsmithing, whetstone making, woodworking

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  1. I would assume that if you send it out to someone they'd heat treat the entire blade(maybe they'd anneal the tang?) the second thing you're talking about is called "differential heat treatment" only the bevel is quenched in oil/water/etc but that process would require them to hold the red hot spine above the quenching substance and not let the heat travel down to the bevel during hardening, so I would not think that's something they would generally do on their own without request. maybe they have more automated methods to do it, I don't how high tech your guy is. "differential heat treatment" gives knives a soft flexible spine, that would make the blade less likely to snap under higher stress, that being said, "tempering" does the same thing, just not as much. for a cleaver I would say, if possible, yes a "differential heat treatment" would give you a bit more insurance if you decide to go chop a cow in half. if you're using it as a kitchen knife and not like a butcher on bones, I think you can get away without a differential heat treat.
  2. you guys are mad! forging while drinking beer?! nothing gained by going easy to the bottle light an' fleety Rum! Rum! Rum! bones like jelly, skull feels num' I am blacksmith got so drunk fell in forge...hmng need more rum!
  3. do you mean "kinds" of other stuff? please tell me that their wonderful and variety rich assortment does not include little children! oh the humanity, literally. In Germany jerky isnt really a thing yet. I'd love to go to a store like that and just buy everything! except the kids jerky, nothing against eating children but I'd feel morally opposed. XD
  4. yea its similar in theory to a sen dai except it works the other way around and is hand held but for all I know it could be that both the hand board and the ground sitting beam are simply called sen dai. yea im familiar with Dave from the crossheart forge aka islandblacksmith, he has already answered and advised me a couple of times, without him and John Burt I never would've build a fuigo @steven smith I haven't reach the stage of making sen yet but I've heard them say that for effective sen scraping you need to "break up/disrupt" the layer of hard forge scale and of course it needs to be as annealed as can be. there might be something with edge geometry but as far as I learned its flat back and 20-30 bevel. I was planing to make the tool from the pics then make sen scrapers with that tool, then a nice heavy beam for a sen dai.
  5. Hoi, I know how to make it and use it but I cant seem to find the name for it. the closest I've come was "togi-ban"-sharpening board, makes sense but...I don't trust google translate with Japanese. anyone know the name, for certain? info: this tool is used for rougher grinding to form the ura "hollow back" of japanese tools.
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