Another tenon saw complete.

[Graham Orm]

Beautiful

 

[swagman]

Today I was able to track down the quality issue with the saw bolt holes. While waiting for some 3/16 stainless rod to arrive in the post I was using the counterbore with the drill bit upside down as the pilot. Well the stainless rod arrived in the post today but before I changed out the upside down bit I tested it and sure enough the spiral cutting flutes clamped within the drill chuck was causing the counterbore to operate slightly out of concentric. After fitting the stainless rod as pilot the counterbore ran perfectly true. I tried this out on the new jarrah handle I have been working on and the fit around the saw bolt heads was much more tighter. Very pleased now.

Heres a photo of the jarrah handle after using the counterbore. I kept the saw bolts slightly proud and added the light chamfer as before. It not the best of photo's but you get a reasonable indication of the saw bolt fit.

Stewie;

 

[swagman]

Hi all. Here are a couple of photo's of the seated saw screws on a scrap piece of timber. The 1 on the left side is flush mounted. The 1 on the right has been bored to the same depth as the flush mount but has the supplied star washer fitted on the underside of the saw bolt to seat it proud with the chamfer added. Its a nice way to present the differences between the 2 ways of installing them.
You will also note that the 2 types of counterbore are completely fitted out with depth stop & 3/16 pilot rod.

Regards Stewie.

 

[swagman]

Hi all. I took some vernier measurements of the countebore and the TFWW saw bolts I use. Same dia. found on 3 bolts I checked.

Counterbore (0.499 ") 12.67mm

saw bolts (0.493 ") 12.55 mm

Difference in dia. (0.006 ") 0.12mm

Stewie;

 

[custard]

Very nice, I particularly like the way the curve on the heel of the saw plate blends into the handle.

IMO the counterbored nuts are much, much nicer than having them proud. If the nuts were engraved or cast medallions then it would be different, but plain nuts just look out of place left proud, and a discrete counterbored treatment gives a more professional and elegant appearance.

 

[swagman]

Very nice, I particularly like the way the curve on the heel of the saw plate blends into the handle.

IMO the counterbored nuts are much, much nicer than having them proud. If the nuts were engraved or cast medallions then it would be different, but plain nuts just look out of place left proud, and a discrete counterbored treatment gives a more professional and elegant appearance.

When you compare them side by side I am agreement with you.

Stewie;

 

[swagman]

Making good progress on my new backsaw with the Jarrah handle. Just the saw sharpening to go. Will continue with the trend of 14 tpi. The heel of the saw plate is rather plain jane in appearance. Just for something different. The saw nuts are the ones with the chamfer added and seated slightly proud.

Stewie;

 

[bugbear]

Today I was able to track down the quality issue with the saw bolt holes. While waiting for some 3/16 stainless rod to arrive in the post I was using the counterbore with the drill bit upside down as the pilot. Well the stainless rod arrived in the post today but before I changed out the upside down bit I tested it and sure enough the spiral cutting flutes clamped within the drill chuck was causing the counterbore to operate slightly out of concentric. After fitting the stainless rod as pilot the counterbore ran perfectly true. I tried this out on the new jarrah handle I have been working on and the fit around the saw bolt heads was much more tighter. Very pleased now.

And thus dilligence is rewarded - very nice work indeed.

BugBear

 

[swagman]

Thanks Bugbear.