what size mm diamond hole saw

[sjm1978]

what size diamond hole saw do i buy for a 1" bulkhead the bulkhead needs a 1 3/4" hole so what mm size do i buy?

 

[theatrus]

http://www.google.com/search?hl=en&...official&hs=vRF&q=1.75+in+to+mm+=&btnG=Search

 

[sjm1978]

so a 45mm bit?

 

[IPT]

seems like 45mm is correct - read here:
http://reefcentral.com/forums/showthread.php?s=&threadid=603816

 

[sreefs]

45mm is for a 1inch bulk head.
HTH
Pat

 

[hllywd]

I use a 45mm hole saw for my Sch40 1" bulkheads. Be aware some are apparently sized different. I've personally never seen a different O.D. other than a Sch80.

Tim