Glass hole enlargment

[Warnberg]

I have a glass frag/breeder tank and the hole that is drilled in the tank is too small for a bulkhead fitting. Anyone know of a way I can enlarge the hole.

Thanks,

 

[flfirefighter13]

The store I just had mine drilled in didnt have a big enough bit so they drilled as large as they ahd then ran a diamond grinding bit around it for a while. Took time but it worked, I have also heard of people useing a regualr drimmel and diamond grinding bit to do it as well

 

[ReefArtist]

I have a lot of bits to drill glass what size you need?

 

[ReefArtist]

How much larger does it need to be? I drilled a hole for a 1" bulkhead using a drimmel - took about 2 hours! It worked. If it's just a little I'd use a drimmel with a diamond bit, but larger say 1/4 or more and I'd use a bit for cutting it. The regular bit is VERY chancy - I broke a tank that way.

 

[Warnberg]

I'll have to measure it to see how much bigger it has to go, I have two size bulkhead fittings and I'd like to go to the larger one if possible....

I have to say this, you guys are the best... everyone helping everyone....

ReefArtist, I'll measure when I get the chance and let you know.

Thanks again everyone,

 

[mflamb]

ReefArtist...if you don't have the right size, I have several also.

 

[alizarin]

I just enlarged a hole today with my dremel and it took 2 minutes. The dremel brand diamond bits are too tiny - I use diamond coated sanding bits that are like a cylinder the size of your pinky and it goes very quickly. I've done 3 tanks no problems. Buy them at the Harbor freight, 9$ for a box of 50, on Fletcher and 275 or feel free to borrow mine =) Be sure to spray the hole with water once in awhile so it doesn't crack from the heat though.

 

[denwak]

Go to Bison Glass in Tampa. Drilled my sump/fuge. Probably could help you too.

D

 

[ReefArtist]

No need to put out $ when we have all the reef buddies willing to help .

 

[mflamb]

Are we drilling or what!!!!!!!!!

 

[Warnberg]

I'm going to pickup some diamond coated sanding bits today and see what I can do.

The hole is about 1 1/4 and it needs to be about 1 3/4.

Thanks all, I'll ket you know how it goes.

 

[mflamb]

I have a 45mm (1.75") diamond hole saw........enlarged hole in 90 seconds!!!