most needed hole saws?

[kwirky]

Originally Posted by BCOrchidGuy

Hey, remember the hole saws do not correspond to PVC Diameter but to bulkhead size. For instance, my 1 1/2 inch bulkheads are for 1 inch PVC, look for my post in here about a week ago where someone told me what size hole for what size bulkhead and go from there.

Doug

thanks for the lead, doug, that list helped a lot

So I've compiled a list of required drill bits for both "el-cheapo" tank adapters, and Spears adapters, because I'm sure SOMEONE will want this information later, and it's nice to have information in one spot

holesaw size (inches) * holesaw size (mm)
S = spears bulkhead pipe size (inches), C = el-cheapo bulkhead pipe size (inches)
1 1/8" * 29mm, C0.5
1 1/2" * 38.7mm, C0.75 S0.5
1 3/4" * 45.15mm, C1.0 S0.75
2" * 51.6mm, S1.0
2 1/2" * 64.5mm, C1.5
2 3/4" * 70.95mm, S1.5
3" * 77.4mm, C2.0
3 3/8" * 87mm, S2.0

a little sidenote/story....

When I got my glass cut by bow valley, mitch sold me some bulkheads, saying "those bulkheads at W.I.P.A.L. are REAL nice, but we can't afford 'em"
I bought some of the ones Doug mentioned in his thread:



well, my mom works at a WIPAL (plumbing wholesaler) and the owner, Mike, was over for x-mas and when he saw the bulkheads, he said "those are the worst bulkheads i've ever seen. I don't even know where he GOT those things!" He gave me some spears ones for x-mas lol.

I'm using the 3/4" in my 120g for the return line. the REAL nice 1.5" spears he gave me didn't fit in the hole cut in the tank already, so I gave it back. thing was worth like $80 though!

so now I have to hum and haw, because I can't afford all these hole saws (found 'em for $5-30 each on e-bay from china). I have to decide whether to emphasize the el-cheapo sizes or the spears sizes...

decisions decisions!