Modifying a hole saw

Try as I might I  can't seem to locate the post on modifying a hole saw to a patch cutter.  Some one lead me to it.

It’s in “punching out wool felts”. In the traditional muzzle loading on the home page. But the short of it is to chuck the hole saw arbor in a drill and go to the grinder or chuck it up in a drill press and take a file to it if I remember right

Clem, is this what you were looking for?
https://www.modernmuzzleloader.com/threads/what-do-you-use-for-the-backing-under-patches.39268/#post-353432

Maybe Lew, can copy his stuff onto this forum?

[quote="Ivan Wagurak"]It’s in “punching out wool felts”. In the traditional muzzle loading on the home page. But the short of it is to chuck the hole saw arbor in a drill and go to the grinder or chuck it up in a drill press and take a file to it if I remember right [/quot
Yep that's what i was looking for

I spent almost an hour yesterday up at Joann Fabrics looking with different associates to find the unbleached drill fabric for patches without any luck. They said they had 29 yds in stock!.
I came home and placed an order online with the SAME STORE and got an email 30 mins later that my order was ready! Imagine that.

Bronko22000 wrote:I spent almost an hour yesterday up at Joann Fabrics looking with  different associates to find the unbleached drill fabric for patches without any luck.  They said they had 29 yds in stock!.  
I came home and placed an order online with the SAME STORE and got an email 30 mins later that my order was ready!  Imagine that.

That figures

Well I started with a 1.25" hole saw and got it all ground down and an edge put on it. But when I cut the patches they came out at 1.125". I didn't account for the interior diameter. These are pretty close to being too small for my .58 cal. (by my calculations a 1.125" patch will give me less than 1/4" extra. That's not much on each side of the ball.) I may have to go with a 1.5" hole saw.

Bronko22000 wrote:Well I started with a 1.25" hole saw and got it all ground down and an edge put on it. But when I cut the patches they came out at 1.125". I didn't account for the interior diameter. These are pretty close to being too small for my .58 cal. (by my calculations a 1.125" patch will give me less than 1/4" extra. That's not much on each side of the ball.) I may have to go with a 1.5" hole saw.

Maybe even try a 1-3/8”?