Tool Talk

Wrench Forum => Wrench Forum => Topic started by: Northwoods on June 17, 2018, 09:41:50 PM

Title: Tungsten Spark Plug wrenches
Post by: Northwoods on June 17, 2018, 09:41:50 PM

Have two of these old Tungsten wrenches.  One is 7/8" by 1".  The other is 1" by 1 1/8".
Anyone know if there are any other sizes?


https://www.ebay.com/itm/Old-Tungsten-Spark-Plug-Wrench/232786682721?hash=item36332ae361:g:TM8AAOSwgkhajwe0

Title: Re: Tungsten Spark Plug wrenches
Post by: john k on June 19, 2018, 10:43:22 PM

Early plugs I have seen were 13/16, and 7/8, very early were one inch.   So maybe there is one more out there.

Title: Re: Tungsten Spark Plug wrenches
Post by: Northwoods on June 20, 2018, 09:11:15 AM

I hope so. 
I have had the larger one for a couple of years and picked up the second only because it was easily available.  It is so similar in length that I didn't at first realize it was different.
Only about 1/8" difference in their lengths.

Title: Re: Tungsten Spark Plug wrenches
Post by: JoeCB on June 20, 2018, 05:51:16 PM

Champion C-4 a common plug back in the day has 1- 1/8 hex.  C-4 were used on Model A Fords 1928 - 31 .  I would say pretty common plug size back then. 

Joe B

Title: Re: Tungsten Spark Plug wrenches
Post by: Northwoods on June 20, 2018, 07:50:58 PM

I know some folks (many have access to old auto graveyards) make a great hobby of collecting plugs.  I see that Tungsten brand plugs came in individual tins.