1.5" BSP element punch

[chris2012]

I'm wondering if someone could tell me what hole punch I'd need to punch a hole in a vessel to put a
1.5" BSP element thread into the vessel.

For 1/2" BSP i've used a 21mm punch, so I'm guessing for 1 1/2" BSP I'd use a 48mm punch?

http://www.ebay.co.uk/itm/Q-Max-Sheet-M ... 5663f977ea

cheers

Chris

[mooj]

That's just right I'd say, a 1.1/2" bsp thread has a major diameter of 47.8mm according to a quick check on the web.

[boingy]

Yup, 48mm is bang on.

[chris2012]

Awesome cheers guys