Punch size # vs diameter

[JamesRiley]

Hi Folks.  Newbee here.  I'm making holster out of an Al Stohlman book.  He calls for a number 3 punch.  I have punches but they don't say what size they are.  Is there a conversion chart somewhere that shows diameter of sizes?  Thanks.

[Frodo]

Mr James.  what size thread are you going to use?

I use chisels instead of punches,  

here are the chisel sizes,  you need to match up to your thread size

 

[mike02130]

Go search the C S Osborne site.  They have a chart.

[JamesRiley]

3 minutes ago, Frodo said:

Mr James.  what size thread are you going to use?

I use chisels instead of punches,  

here are the chisel sizes,  you need to match up to your thread size

 

Hi Frodo:  Thanks.  That chart will come in handy.  Right now, though, his directions have me lacing up two pieces, butt to butt, with thong.  He has me making thong 5/16" wide from 2.5 to 3.5 oz leather, beveling both edges on the flesh side.  I don't want my punch holes too big or too small.  Directions say #3 punch but I have no idea what that is. 

[JamesRiley]

13 minutes ago, mike02130 said:

Go search the C S Osborne site.  They have a chart.

Found it.  Thanks!

[Frodo]

2 minutes ago, JamesRiley said:

Found it.  Thanks!

well post the chart.  learn all of us something

[JamesRiley]

9 minutes ago, Frodo said:

well post the chart.  learn all of us something

I'll post the link since I don't know how to do the photo: https://www.csosborneleathertools.com/product_detail.php?p_id=370

Once there, if you click on the picture, it gets bigger and legible.

 

Edited February 12, 2021 by JamesRiley
clarification

[fredk]

Edited February 12, 2021 by fredk

[TonyV]

thanks fredk

[MikeRock]

The text parts are handy but don't go by the sizes of the black circles.  On my screen the 16......1/2" measures 3/4"...