Model Engine Maker

Help! => Machines, Tools and Fixtures => Topic started by: dgehricke on January 24, 2020, 09:54:25 PM

Title: Portomatic #500 keyless chuck
Post by: dgehricke on January 24, 2020, 09:54:25 PM

I am at a loose for the JT size for this chuck, it measures .652 at the top of the female taper I don't know what the bottom measurement is I have no way to measure this.
I"m looking at a #6JT but the measurement for this is .6760.
Any help much appreciated.

dgehricke

Title: Re: Portomatic #500 keyless chuck
Post by: Lew Hartswick on January 28, 2020, 02:45:02 PM

With nothing but the number the search results look like a Jacobs 33 .
   ...lew...

Title: Re: Portomatic #500 keyless chuck
Post by: dgehricke on January 29, 2020, 09:10:37 PM

I've checked that size and a JT2 aswell waiting for a JT6 X MT2 it will be here  Friday. Thanks for the response.
dgehricke