Drilling holes into a 90G for an internal overflow

[joseney21]

Well for those of you eager to drill your tanks, here it is. may not always work (always has for me though) so don't hold me liable for cracked tanks.
had to throw that in there, lol.

Here are the pictures of the tools you'll need, bit used and the finished holes....

sorry they're all together, i don't know how to post between the pics.

 

[joseney21]

the holes are close to perfect circles. that big nut is the nut to the bulkhead.you set the nut flat against the glass and with a marker at an angle trace along the inside (this is the width the hole has to be for the bulkhead to fit).took about two to three minutes of drilling for each hole, with my friend leo pouring water over the drill site with air line tubing.

 

[pmui]

nice work.

I think a diamond bit hole saw is easier.

 

[joseney21]

never used one before. aren't those bits alot more expensive than a tile cutting bit though ($7 for a tile cutting bit that will cut many many holes)??do you need to have a drill press to do it with the hole bit??how long does it take with the hole bit (took us 2-3 minutes for each saw with this bit)??

 

[joseney21]

in this video we show you how to start the hole. you make one small hole in the center of where you want the bulkhead to go and another along the outside of the hole.

http://www.zippyvideos.com/9395490742016786/pivot_hole_and_starter_hole/



here we're already drilling and leo runs out of water


http://www.zippyvideos.com/5313138172016646/make_sure_you_use_enough_water/

 

[Hitsnorth]

Great stuff Jose!

 

[ShaunW]

Cool!

 

[pmui]

free handing the cut is nerve racking.
I got the diamond bit drills bits from here:
http://cgi.ebay.com/40mm-Diamond-co...QitemZ6573037089QQcategoryZ4843QQcmdZViewItem

as for the drill press i used this baby:
http://www.woodcraft.com/Family.aspx?familyid=3121&refcode=06INOVER&keyword=drill_guide
I drill (3) holes in my 120gal in 15min. 3/8" glass.

But you did an excellent job on those holes.

Peter

 

[ctxmonitor]

I need to drill two hole on the bottom for my 90 gallon tank. Its 1/2" thick, though. Do you mind if I borrow yours or you could come help me drill it? Thanks a bundle..

Just the thread I wanted to start and ask for help with drill my tank.

free handing the cut is nerve racking.
I got the diamond bit drills bits from here:
http://cgi.ebay.com/40mm-Diamond-co...QitemZ6573037089QQcategoryZ4843QQcmdZViewItem

as for the drill press i used this baby:
http://www.woodcraft.com/Family.asp...ord=drill_guide

I drill (3) holes in my 120gal in 15min. 3/8" glass.

But you did an excellent job on those holes.

Peter

 

[pmui]

i would becareful of drilling tank bottoms, they are usually tempered glass and you cannot drill it.

sure you can borrow it, the bit is for 1" bulk head. LMK

Peter

 

[ctxmonitor]

i would becareful of drilling tank bottoms, they are usually tempered glass and you cannot drill it.

sure you can borrow it, the bit is for 1" bulk head. LMK

Peter

I was told that its wasn't tampered glass and 1" bulk is exactly what I wanted acutally.. I let you know when I need it.. thanks.

 

[joseney21]

nice on those finds!!!how much for the drill guide??that's a crazy price for a hole saw bit, specially being shipped from Hong Kong.

 

[janey]

can't view it

How do i view it ??

 

[Kedd]

Hi Jose,
It's been a while.
How it going?

Kedd

 

[joseney21]

hey Kedd what's up?? going good, but i still haven't set up that 180G....hopefully very soon though.new tank is looking great btw.

 

[Kedd]

Did you clean it up and paint the stand?

Kedd

 

[pmui]

i got them on ebay:

http://cgi.ebay.com/WOLFCRAFT-DRILL...557749050QQcategoryZ71296QQrdZ1QQcmdZViewItem

Peter