Tap & Drill Chart For Gunsmiths

Dixie Gunsmithing · April 16, 2014, 12:55 PM

All,

Below is a tap and drill chart by Hanson, that includes most gunsmithing screws, along with the proper drill sizes, though some may fudge these. Anyhow, the 6-48, etc., is here.

Tap-Drill by matneyw, on Flickr

Attention, Update: The photo was edited to correct the 1/64th size at the top. If you have the old one, and want the updated one, use this new version.

g.willikers · April 16, 2014, 04:41 PM

Thanks, can always use a tap and drill chart.
Especially for the smaller sizes.

Dixie Gunsmithing · April 16, 2014, 06:19 PM

You're welcome.

I forgot to add, that the diameter/type column is the drill diameter. Why they didn't call it that is beyond me. It is in either number, letter, fraction, or millimeters.

tomj44 · April 16, 2014, 06:52 PM

Thank You Dixie.

Clark · April 16, 2014, 10:15 PM

The poster sized drill and tap charts from Starrett sell for $10 on Ebay, but I got a few just by contacting Starrett.

Today's problem was the wife had stripped out the 6-32 screw in the GFI outlet in her bathroom.

Can't do nuthun' without a drill and tap chart.

iraiam · April 17, 2014, 12:50 AM

Thanks, I already printed several copies to post on numerous tool boxes and such.

steveno · April 17, 2014, 02:27 AM

at the top of the list there is a typo. 1/64 should be .0156 and not .0516

Pahoo · April 17, 2014, 09:50 AM

Dixie
I appreciate this contribution to the forum. I have been using a similar chart, for years. Your is better than the one I have been using. ....

Thanks again and;
Be Safe !!!

Dixie Gunsmithing · April 17, 2014, 10:02 AM

steveno,

You are correct. The 1/64th size needs to be changed to .0156" when printed out.

steveno · April 17, 2014, 10:19 AM

if you expect to do any machining beyond drilling and tapping a couple of holes I would suggest that you get a copy of Machinery's Handbook. yes it is kind of expensive but there is a LOT of information in it.

Dixie Gunsmithing · April 17, 2014, 10:21 AM

I updated the photo and corrected the 1/64th dimension at the top. How Hanson never caught this, I don't know.

April 16, 2014, 12:55 PM	#1
Dixie Gunsmithing Moderator Emeritus Join Date: April 27, 2013 Location: Ohio Posts: 1,923	Tap & Drill Chart For Gunsmiths All, Below is a tap and drill chart by Hanson, that includes most gunsmithing screws, along with the proper drill sizes, though some may fudge these. Anyhow, the 6-48, etc., is here. Tap-Drill by matneyw, on Flickr Attention, Update: The photo was edited to correct the 1/64th size at the top. If you have the old one, and want the updated one, use this new version. Last edited by Dixie Gunsmithing; April 17, 2014 at 10:20 AM.

April 16, 2014, 04:41 PM	#2
g.willikers Senior Member Join Date: September 28, 2008 Posts: 10,442	Thanks, can always use a tap and drill chart. Especially for the smaller sizes. __________________ Walt Kelly, alias Pogo, sez: “Don't take life so serious, son, it ain't nohow permanent.”

April 16, 2014, 10:15 PM	#5
Clark Senior Member Join Date: December 4, 1999 Location: WA, the ever blue state Posts: 4,678	The poster sized drill and tap charts from Starrett sell for $10 on Ebay, but I got a few just by contacting Starrett. Today's problem was the wife had stripped out the 6-32 screw in the GFI outlet in her bathroom. Can't do nuthun' without a drill and tap chart. __________________ The word 'forum" does not mean "not criticizing books." "Ad hominem fallacy" is not the same as point by point criticism of books. If you bought the book, and believe it all, it may FEEL like an ad hominem attack, but you might strive to accept other points of view may exist. Are we a nation of competing ideas, or a nation of forced conformity of thought?

April 17, 2014, 12:50 AM	#6
iraiam Senior Member Join Date: September 6, 2012 Location: Lakewood, CO Posts: 1,057	Groovy Thanks, I already printed several copies to post on numerous tool boxes and such. __________________ NRA Lifetime Member Since 1999 "I ask, sir, what is the militia? It is the whole people except for a few public officials." George Mason

April 17, 2014, 09:50 AM	#8
Pahoo Senior Member Join Date: February 16, 2006 Location: IOWA Posts: 8,783	Excellent post Dixie I appreciate this contribution to the forum. I have been using a similar chart, for years. Your is better than the one I have been using. .... Thanks again and; Be Safe !!! __________________ 'Fundamental truths' are easy to recognize because they are verified daily through simple observation and thus, require no testing.

April 16, 2014, 06:19 PM	#3
Dixie Gunsmithing Moderator Emeritus Join Date: April 27, 2013 Location: Ohio Posts: 1,923	You're welcome. I forgot to add, that the diameter/type column is the drill diameter. Why they didn't call it that is beyond me. It is in either number, letter, fraction, or millimeters.

April 16, 2014, 06:52 PM	#4
tomj44 Junior Member Join Date: July 13, 2007 Posts: 13	Thank You Dixie.

April 17, 2014, 02:27 AM	#7
steveno Senior Member Join Date: June 18, 2004 Location: Minden , Nebraska Posts: 1,407	at the top of the list there is a typo. 1/64 should be .0156 and not .0516

April 17, 2014, 10:02 AM	#9
Dixie Gunsmithing Moderator Emeritus Join Date: April 27, 2013 Location: Ohio Posts: 1,923	steveno, You are correct. The 1/64th size needs to be changed to .0156" when printed out.

April 17, 2014, 10:19 AM	#10
steveno Senior Member Join Date: June 18, 2004 Location: Minden , Nebraska Posts: 1,407	if you expect to do any machining beyond drilling and tapping a couple of holes I would suggest that you get a copy of Machinery's Handbook. yes it is kind of expensive but there is a LOT of information in it.

April 17, 2014, 10:21 AM	#11
Dixie Gunsmithing Moderator Emeritus Join Date: April 27, 2013 Location: Ohio Posts: 1,923	I updated the photo and corrected the 1/64th dimension at the top. How Hanson never caught this, I don't know.