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No you cannot drill tempered glass. If your glass is tempered there isn't really any modifications that can be done to it as it will shatter. Fortunately most aquariums do not use tempered glass (though its more common on the bottom panel).
ABS is always a black plastic color. Schedule 80 will be gray. In most cases the bulk heads in the hobby are ABS. Feel free to let us know if you have any further questions!
For a ½” Sch 80 bulkhead we suggest using a 35mm glass whole saw.
You could get around 6 cuts per drill bit before the bit tends to slow down. Feel free to let us know if you have any further questions!
For acrylic you just need a plain toothed hole saw bit like the set linked below, no need for a diamond coated drill bit.
Drill bit & Bulkhead Compatibility
- 12mm Glass Drill bit works with our RO Float Valves.
- 30mm Glass Drill bit works with our 1/2" ABS Bulkheads.
- 35mm Glass Drill bit works with our 3/4" ABS Bulkheads.
- 42mm Glass Drill bit works with our 3/4" heavy duty SCH 80 Bulkheads.
- 45mm Glass Drill bit works with our 1" ABS Bulkheads.
- 48mm Glass Drill bit works with our 1" heavy duty SCH 80 Bulkheads.
- 53 mm Glass Drill bit works with our 1.25" ABS Bulkheads
- 60mm Glass Drill bit works with our 1.25" heavy duty SCH 80, and 1.5" ABS Bulkheads.
- 65mm Glass Drill bit works with our 1.5" heavy duty SCH 80 Bulkheads.
- 75mm Glass Drill bit works with our 2" ABS Bulkheads.
- 85mm Glass Drill bit works with our 2" Heavy Duty SCH 80 Bulkheads.
Good quality By Joseph on 8/13/2017Joseph would recommend this product to a friendI have cut a total of 10 holes now and the bit still looks like new.
Dulls too quickly By Ryan on 8/6/2017Ryan would recommend this product to a friendI was unable to complete my second 65mm hole in my 1/2" thick Oceanic glass aquarium before the bit lost its sharpness. Am purchasing another to finish the job and drill a third hole.
Good product. By Shawn O on 5/25/2017Shawn O would recommend this product to a friendDrilled 3 holes for the 1" bulkheads and they came out pretty good. One chip where I rushed the first hole. The other 2 holes looked like a pro did them.
Michael would recommend this product By Michael on 3/14/2017Michael would recommend this product to a friendI bought the 65mm to install a shadow overflow on a 150 gal. I was almost certain the side glass was not tempered but I was still prepared to clean up a shattered mess. Good news, two holes drilled successfully! Go slow and let the bit do the work. Watch lots of videos too.
Worked Great By Alex on 12/30/2016Alex would recommend this product to a friendWorked great to cut a hole in my sump for an external skimmer fast and clean and ready for more cuts. used plumbers putty to create a water pool to help cool the bit and painters tape on the other side to catch the glass plug.
45 mm Diamond Coated Glass Drill Bit By William on 11/23/2016William would recommend this product to a friendExactly as described Great service
Amazing drill! 35 and 45mm By Marduk on 11/21/2016Marduk would recommend this product to a friendIt was my first time to drill my tank, and this product was easy to work, I recommend it! greetings from México!
Dulls quickly By Mack on 9/29/2016Mack wouldn't recommend this product to a friend3/4" bit got dull before finishing the 1st hole through 1/2" glass. Second hole took almost and hour to drill
Drilled my first tank! By Dan on 9/9/2016Dan would recommend this product to a friendI drilled my 40 breeder frag tank with this bit and it worked flawlessly! I couldn't be more happy with the end result. I was very nervous as this was my first time drilling glass but I went nice and slow and used the drill guide which in my opinion is a must.
Bits work great By Chris on 9/4/2016Chris would recommend this product to a friendDrilled two holes with the 60mm and one with the 48mm. Was super easy, had no problems.
Definitely Worth It By LogTech on 8/1/2016LogTech wouldn't recommend this product to a friendMy buddy and I have been reefing together for about 2 years now. We've cut simple tanks, 1/4" glass, but recently, I got a 220 custom tank I needed to drill the bottom for my returns and overflows. Whoever built this thing went nuts and used true 3/4" glass all around, but also inserted a true 1/2" piece of glass on the bottom, including a 1/4" polycarbonate sheet. We got the 48mm bit and went to town. Cut 5 holes through all of it and did an amazing job in the process. Probably used this thing way past its life, but it didn't seem to care.
If you need to cut some glass, use these bits.
Worked great. Reasonable price By Todd on 5/2/2016Todd would recommend this product to a friendWorked great. Reasonable price