Dunno. What I'd do is keep trying different wrenches until I found one that worked.

 

tappet wrenches...

 

315 xxx indicates that it was made by Ryobi. My guess is that the nuts are metric. For some reason metric tappet wrenches are a very rare beast. But if he needs 19 mm, 3/4" is virtually the same thing, within a few thou' and always fits. Other possibilities are bicycle wrenches and the thin wrenches from Grip and V8.

Sent from my SM-G900V using Tapatalk

 

Thanks,

I've never heard of a Tappet wrench. As far as trying them out, 3/4 is as big as I get. That is the issue. Hoping someone may have the router and the wrenches.

Thanks!

 

Tappet wrenches are very thin wrenches. Like these: Tappet wrenches You could also try cruising flea markets and pawn shops to find a thin wrench that will work.

 

the tappet wrench is for the shaft...
the collet nut will take most any wrench...

 

There is nothing special about the wrenches that are supplied with a router other than they can be made very simply and cheaply by stamping them out. If you aren't sure what size the collet nut is then take it off and take to an auto parts store and ask them for a wrench to fit it.

 

Ii have a Craftsman 315.17480 router. There is a thin nut which is slightly larger that 3/4 and there is a jam nut which is 3/4". Mine also has a locking mechanism that allows you to use just one wrench.

 

www.ereplacementparts.com

 

You could even take a regular 3/4 or 19mm and just grind it thin enough. Just keep quenching it in wTer to keep from overheating it. I used to own some logging equipment and I had my good wrenches and also a cheap set for bending into odd shapes and cutting the heads off and welding them back on at different angles etc.

 

Went to a flea market and bought a wrench a little smaller than what I needed (measured the nut as best as I could). Filed the opening bigger by trial and error until it fit perfectly. Cost me $1 and a little elbow grease.