Coping saw blades to fit in Jap. kerf?

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Forum topic by Ben posted 12-26-2016 09:08 PM 2790 views 0 times favorited 8 replies Add to Favorites Watch
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515 posts in 4316 days

12-26-2016 09:08 PM

I use a Japanese pull saw to cut dovetails. I’m in the market for a good coping saw and am wondering if there are blades out there that slip into the kerf of a Japanese saw? Or, do I need to get a fret saw?

I was looking at the Knew Concepts – price is a bit hard to swallow for such a simple tool. Thinking about getting the Olson but I want to avoid having to make a separate kerf with the coping saw.


8 replies so far

View Tim's profile


3859 posts in 3421 days

#1 posted 12-27-2016 05:51 PM

I don’t have any Japanese saws so I can’t tell you their kerf, but a regular coping saw blade has a pretty thin kerf. Also, from all accounts the Knew Concepts is worth the money if you have the money to spend on it.

View djwong's profile


176 posts in 4679 days

#2 posted 02-10-2017 09:14 AM

You can find blades that will fit in a thin kerf at

I find there is too much risk to damage the dovetail walls due to the narrow kerf, even with very thin blades. Usually, I will first saw diagonally from the middle of the dovetail to the bottom edge. This gives plenty of space to start cutting horizontally, without any risk of damaging the dovetail wall. Slower, because you are making two cuts, but safer.

-- David W. Cupertino, CA

View ksSlim's profile


1304 posts in 4349 days

#3 posted 02-10-2017 11:28 AM

I use the Knew Concept fret saw. I bought it for the “quick” tension and the clearance from the frame 8”.

Lessor expensive fret saws can be had from jewelry supply houses.
Tho cheaper not as easy to set tension [kind of I guess this is close].

-- Sawdust and shavings are therapeutic

View TheFridge's profile


10863 posts in 2945 days

#4 posted 02-10-2017 04:38 PM

I have the 5” KC fret saw. Wonderful tool. I didn’t like the price until I used it. I use it for tenons and other stuf to get close to the line.

Or a fret saw. I had problems with a coping saw blade fitting in my kerfs and using them period. That’s why I went fret saw.

-- Shooting down the walls of heartache. Bang bang. I am. The warrior.

View JollyGreen67's profile


1676 posts in 4222 days

#5 posted 02-10-2017 05:23 PM

Knew Concept ! Expensive, but worth it.

-- When I was a kid I wanted to be older . . . . . this CRAP is not what I expected ! RIP 09/08/2018

View AlaskaGuy's profile


6876 posts in 3768 days

#6 posted 02-10-2017 06:02 PM

Did you know that “Jap” is considered an ethnic slur?

-- Alaskan's for Global warming!

View Kirk650's profile


746 posts in 2208 days

#7 posted 02-11-2017 01:03 AM

I use a thin blade pull saw for dovetails, and I had that same problem with the coping saw. I finally dragged out my old scroll saw (saw the idea on the internet), put a real good blade on it and used it to remove most of the waste. I chisel out the rest, and all is good. I’ll use the coping saw for minor cleanup on angles the scroll saw can’t reach.

View JohnChung's profile


422 posts in 3534 days

#8 posted 02-14-2017 03:22 AM

I have used a generic coping saw then the Knew Concept. KC is worth every penny spent and it will last a lifetime.

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