AWGB Woodturning Forum

General Category => Tool tips & reviews => Topic started by: BobG on May 06, 2017, 04:55:49 PM

Title: Thread on a Graduate, Whitworth or UNC?
Post by: BobG on May 06, 2017, 04:55:49 PM

Is the thread on a Graduate 1 1/2 x6tpi a Whitworth or UNC thread form?

Title: Re: Thread on a Graduate, Whitworth or UNC?
Post by: Ianparkin on May 06, 2017, 06:31:23 PM

Whitworth form that's 55 degrees

Title: Re: Thread on a Graduate, Whitworth or UNC?
Post by: BobG on May 06, 2017, 07:03:33 PM

Cheers, looked like Whitworth but I couldn't find my thread gauges! Now I need to find a tap at a sensible price...