I also recommend switching from edge trailing to edge leading if you want minimal burr/wire edge. not that this apex was lacking lol.Īnd here is the same edge, w/ an increase of exactly 1 dps w/ the 1um lapping films, alternating, edge leading passes – no stropping yet. Yes, I micro-bevel my straight razors because I CAN on the wicked edge □ And not only does it add strength, it gives the most consistent apex…. This picture is done at whatever the angle was (don’t remember – don’t measure on straight razors usually) and taken through 3um lapping films. Here is a straight razor I finished up recently. Tom, here is one of the “articles” I was thinking about… good read if you have time. Also, flesh isn’t actually that slippery and incision points aren’t exactly trying to shave a tomato, all you want is clean cuts with a minimum of inflammation-causing tearing. The idea is a bevel so fine that the friction line is so microscopic that it doesn’t even need a bite to sink through flesh. For biology slides, scalpels of glass are used for primary divisions and then slide cuts are made using diamond scalpels, which are prohibitively expensive but obviously very clean cuts at a cellular level. The reason we don’t have them in the operating theater yet us because of concerns that the obsidian blades can chip easily and leave slivers in the flesh. Less damaged tissue, less inflammation, better healing. It’s actually a big point of contention in the medical community with regards to obsidian scalpels, which have been proven in animal studies to drastically reduce healing time because under a microscope, a steel scalpel, no matter how sharp, will tear along the line of incision, whereas obsidian scalpels will actually cleave individual cells in half. Surgical scalpels should not have a toothy edge. This stands to reason as you need a toothy edge to bite into slippery tissue. The packet I bought off Amazon is ground both sides with about 600 grit, and then polished only on one side to leave the toothy edge. They slice tomatoes beautifully, but you can’t expect them to slice easily thru paper.īy the way, I have photos which show that even scalpels are made with a toothy edge. Clay has reported tests showing excellent results with microbevels of even 200 grit, Very toothy edges can be very good for kitchen work. My experience is that putting on a true microbevel requires an absolute minimum of stoning and only one grit. ![]() I would expect that you’d end up with very little visible primary bevel. I think that when you use 400 grit to start your microbevel, you create a very toothy edge which would require a lot of stoning with your 600’s to remove. More will just turn your microbevel into a minibevel. Maybe three very light, alternating strokes with 1000 grit stones. ![]() This reduces surface friction doing the slicing process. When I do a micro bevel on a kitchen knife, I do things pretty much the same, but I polish the primary (17 dps) bevel much higher, with strops or film.
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