What size hole saw

[Kershaw]

was wondering what size hole saw I would need for a bulk that allows you to use 3/4 pvc and 1”pvc. And are the hole saws on Amazon any good?

 

[splix]

I'm too lazy this morning to look it up, but BRS site tells you when you're looking at them on their site.

 

[Crabs McJones]

Depended on what type of bulkhead you're using you'll want to get

35mm glass drill bit for 3/4 ABS bulkhead (most common type)
42mm glass drill bit for 3/4 schedule 80 bulkhead

45mm glass drill bit for 1" ABS bulkhead (most common type)
48mm glass drill bit for 1 schedule 80 bulkhead

Never tried the ones off amazon, always got them from BRS and had good luck with them. I used the 35 and 45 mm to drill my 40 breeder.