I’ve been looking for a Japanese ryoba nokogiri saw that I could practice sharpening Japanese handsaws on. I managed to win one on Ebay that was right around 30 dollars shipped. The blade had a bit of rust and some minor pitting, but wasn’t missing any teeth and was in OK condition. Also, at the end of the article is a one minute video.
Removing the Rust Off the Body
You could go with a chemical way of removing the rust like soaking it in vinegar, but I decided to put a little elbow grease in it. Depending on the amount of rust start with a lower grit sandpaper and move your way up to a finer one. I started with 100 grit and moved to a 220 grit paper.
When you do this abrasive method make sure you’re sanding “with the grain of the steel.” What I mean is pretend the saw blade is a piece of wood and sand from the handle to the tip of the blade. The video at the end shows what I mean.
Another thing to keep in mind is don’t sand the teeth, you might change the set of the teeth.
You might ask, “was I worried about removing the mark of the blade maker?” The description from the Ebay listing was, “This is a master grade double edged Japanese Royb-noko giri saw made by the master Japanese blade maker, Sanjo Masamune. It is the kind of saw that is the mainstay of any Japanese carpenter.” Only thing is with most of the vintage and newer Japanese hand saws I have the blade maker’s mark is chiseled into the steel. With this one it was stamped in ink and the handle has a riveted hole. My guess is this saw was something in the past you might have been able to go to the equivalent of a hardware store and pick up.
Cleaning Rust Off the Teeth
To clean the saw blade teeth just use a brass wire brush.
Protect the Blade from Rust
I was reading about Boeshield T-9 and decided to give it a try. According to the site it’s anti-corrosive fluid that has roots in Boeing. If you don’t want to use that and stay traditional you could use some Japanese Camellia Oil (Hamono Tsubaki) or just some good old 3 in 1 oil like Paul Sellers does.
Trying Out the Hand Saw
An old piece of oak was my test piece of wood. The saw did surprisingly well. Only thing left is to make hand saw blade holder and figure out what size of feather files are necessary to start sharpening.
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