“All times are good for those who know how to work and have the tools to do so.”Carlos Slim
The shinogi usunomi is another variety of paring chisel in the tsukinomi family.
We examined the word ” shinogi” in a previous post.
It means ”ridge” as in the ridge of a mountain, or a building’s roof, or the back of some Japanese swords. Shinogi-style chisels have two wide bevels on their face that meet at the bade’s centerline creating a ridge. Sometimes there is a narrow flat at the top of the ridge, depending on the blacksmith’s style and customer request.
If the atsunomi is the draught horse, the oiirenomis are the quarter horse, and the usunomi is the falcon of the chisel world (the one in my slightly addled head, that is), then the shinogi usunomi is a Goshawk, severe in appearance, fierce, strong, fast, and skilled at maneuvering nimbly in tight situations.
Shinogi usunomi have these same two bevels and center ridge as the shinogi oiirenomi. The side edges tend to be thinner than standard usunomi, and with less material in the way, they are often just the ticket for paring into right corners. And because the ridge is higher than the standard usunomi is thick, they tend to be a bit more rigid.
And of course, since it is an usunomi (meaning “thin chisel”) it has a relatively longer and more slender neck and handle, and no crown.
A pox on anyone that would strike one of these beauties with a mallet or hammer.
One downside to this design is that the ridge down the face, which increases the overall thickness of this chisel, may make it difficult to pare down into skinny mortises. Another potential downside, but not one that bothers me, is that the ridge is not as comfortable to press on with your fingers when paring. I find this ridge gives my fingers a better sense of the blade’s precise location in my hand and in the cut. This is all personal preference that can only be evaluated through experience using both varieties of usunomi.
You may be able to tell from my choice of words that I am fond of shinogi usunomi. Indeed, I admit to prefering them. I like how they look. I like how they feel. I like sharpening them. I like how they cut. I like how the extra clearance on the side lets me see what I am paring. Subjective? Of course. And I admit they can’t do all jobs. The standard usunomi is probably a better general-use paring chisel.
The shinogi usunomi is a serious tool for serious work that looks good while doing it.
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Links to Other Posts in this Series
- The Varieties of Japanese Chisels Part 1 – The Main Categories
- The Varieties of Japanese Chisels Part 2 – The Mentori Oiirenomi (面取追入鑿）
- The Varieties of Japanese Chisels Part 3 – The Shinogi Oiirenomi (鎬追入鑿）
- The Varieties of Japanese Chisels Part 4 – Kakuuchi Oiirenomi (角打追入鑿）
- The Varieties of Japanese Chisels Part 5 – High-Speed Steel Oiirenomi (HSS 追入鑿）
- The Varieties of Japanese Chisels Part 6 – The Mortise Chisel (Mukomachi Nomi 向待鑿)
- The Varieties of Japanese Chisels Part 7 – The Nihon Mukomachi Nomi (二本向待鑿)
- The Varieties of Japanese Chisels Part 8 – The Atsunomi （厚鑿）
- The Varieties of Japanese Chisels Part 9 – The Uchimaru Nomi Gouge （内丸鑿）
- The Varieties of Japanese Chisels Part 10 – The Sotomaru Nomi Incannel Gouge （外丸鑿)
- The Varieties of Japanese Chisels Part 11 – The Tsuba Nomi Guard Chisel (鍔鑿）
- The Varieties of Japanese Chisels Part 12 – The Usunomi Paring Chisel (薄鑿)
- The Varieties of Japanese Chisels Part 14 – Kote Nomi (鏝鑿Trowel Chisel)
- The Varieties of Japanese Chisels Part 15 – Ootsuki Nomi 大突き鑿
- The Varieties of Japanese Chisels Part 16 – High-speed Steel Atsunomi
- The Sokozarai Chisel