Cross reference for drill bits to use with which tap?

[keithbyrd]

I have searched and can't find but I know its here!
- Where can I find a cross reference/chart that shows which drill bits to use with which tap?
- What tenon size for which die?
I need the chart or the instructions on how to figure it !

Your help is appreciated!

 

[Wayne]

Is this what you need?

Drill and Tap Sizing - Imperial and Metric

Drill and Tap Sizing - Imperial and Metric Click on the image below to begin download of PDF. Little Machine Shop

www.penturners.org

And

Tap and Dies for Kitless Pens A Guide

Common Cap threads -single lead m14 x1 m13x1 m12 x.75 m10 x.75 Common Cap threads -triple leads m14 x .8 m12 x.75 m10 x.75 Nose cone/ front section threads -single lead m10 x1 m10x.75 m9x.75 m8.4 x1 Nib/feed assembly threads Bock (classicnibs.com) German made #5- 6.4x.6...

www.penturners.org

 

[rixstix]

Try this post. It does require a small amount of simple arithmetic but works for any tenon

Post in thread 'Tap and die?' https://www.penturners.org/threads/tap-and-die.178729/post-2195346

 

[floatslow]

I've made myself this cheat sheet to use in the shop

 

[carlmorrell]

Every tap I have tells me what size drill to use right on it. For dies you need the OD of the desired final size. For example, if you are making 1/4" x 20, then the OD to die is 1/4".

 

[Wayne]

I've made myself this cheat sheet to use in the shop

Mark,

This concept looks like a great chart.

We should put it in the library.

 

[Kenobi]

For metrical threads, the "step" is also "depth". Example: M33 x 3,5 is hole size 33 - 3,5 = 29,5mm . Thats because metrical thread shape is always 60°.

 

[keithbyrd]

Thank you all for the references and links
just what I was looking for!

 

[Woodchipper]

I have a detailed sheet from a fastener distributor; drills and taps, metric conversion chart, screw size chart and drill bit needed, etc.
I could get ambitious and copy both sides for the forum. Doubt if it is copyrighted.

 

[Wayne]

Even if it is we could post it.

Send it to me, along with the web link.

 

[Woodchipper]

Scanned both sides and will send as attachment...I hope.

 

[Woodchipper]

Let me know if it came through for you to post. I got this many years ago and keep it in a clear folder over my workbench.

 

[Wayne]

Got them, Thanks,

 

[Woodchipper]

I look at the card frequently to solve some of life's mysteries. Rather, shop mysteries.

 

[Kenobi]

Also,there is a free app on Android for metric threads in the playstore.