What type of angle do you folks grind on your chisels? Is 20* to low? Will the edge disappear too fast? Won’t it cut easier on with a lower grind though? Anyways, I have a set of Blue Chip’s
Let me Know
Derek
What type of angle do you folks grind on your chisels? Is 20* to low? Will the edge disappear too fast? Won’t it cut easier on with a lower grind though? Anyways, I have a set of Blue Chip’s
Let me Know
Derek
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Replies
Derek,
Two different angles here -
I grind at about 25 and hone at about 28-30.
If you go too low, the edge won't be durable, but it's a quick and easy fix if the edge fritters away - grind/hone steeper until the edge holds.
Cheers,
eddie
A 20 deg bevel is good for working in softwood by hand but for general purpose a 25 deg with a micro bevel of 1 or 2 deg is better. For heavy work with a mallet then you may want to grind a 30 deg bevel with a 1 or 2 deg micro bevel.
Scott C. Frankland
Scott's WOODWORKING Website
"This all could have been prevented if their parents had just used birth control"
A good rule of thumb is that the length of the bevel should be 2 1/4-2 1/2 times the thickness of the blade. In normal use, you shouldn't have to re-grind (that is, re-shape the blade) very often. I have some 20 year-old chisels that have only been re-ground once or twice. Like Scott, I also use a micro-bevel so the only real sharpening takes place on an oil stone for that leading 1/64" of the blade.
Chip
derek
For bench chisels I agree with the others. 25 primary and a micro of 1 or 2. I do have some skews that I do at about 22 degrees for very fine, light cutting. For mortice chisels the bevel needs to be steeper to handle the beating they take.
Regards...
sarge..jt
Proud member of the : "I Rocked With ToolDoc Club" .... :>)
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