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  • How to Drill and Aquarium and install an Internal Overflow

Diamond Coated Glass Drill Bits

  • Most Effective Product and Great Price Point. By DerechStorm on 4/23/14

    Did some searching locally and unless you have an aquarium in which you are not willing to cut yourself, then the coat savings is amazing. Local glass shop in MI wanted $35 a cut. Lowes and HomeDepot wanted $35-$55 just for the saw. Was simple to use. I do recommend making a template and using the gasket to hold the water in place between the template and glass for a much smoother cutting process. Also place one to two pieces of duct tape under the area to be cut. This will support and catch the glass that is cut.
  • This is it By Ben on 4/22/14

    This drill bit is clearly higher quality than amazon ones, don't waste time looking for other ones, they are all around the same price and function, except here you can add it with other tank goodies and you get quick shipping.
  • Great product! By Shark keeper on 3/24/14

    Quality product that is well built. I have told others where to order from.
  • 35mm By Roger on 3/18/14

    Worked as advertised. Very happy
  • 45mm By Roger on 3/18/14

    Worked as advertised. Very happy
  • Dimond By Rogert421 on 3/18/14

    Worked as advertised
  • These work great! By Doug on 3/9/14

    These glass drills work great. I hold a wet sponge against it while drilling to keep things cool. The only time I broke anything was when trying to drill tempered glass. Don't try to drill tempered glass!
  • Worked perfect for my use By Ethan on 2/16/14

    I bought one 35mm & one 45mm. I made 2 cuts with the 35mm and 6 cuts with the 45mm. They made pretty clean holes and appear to have held up well - I can't tell that they've even been used.

    I made my cuts with a drill press at a speedy 3100rpm and used a spray bottle with cold water to keep the glass cool and to wash away the debris as it accumulated. The glass I was drilling thru was 3/8" and 5/16" thick.

    Worked like a charm. Very happy with my purchase.
  • Works By Greg on 2/3/14

    Got the 30 mm for nano tank and the bit worked great, drilled very quickly on 10 gallon 1/8 glass tank. i didn't use a guide just started with bit on a angle and gently lifted it up to a vertical position using just the weight of the drill bit.
  • Diamond coated glass drill bit works great! By Doug on 1/30/14

    I had never drilled glass before, only acrylic. I actually experimented and drilled a glass sump tank using a carbide grit hole saw and it worked! I ran a slow RPM with lots of water and no downward pressure. Once I tried this diamond drill bit, I was in love. No more custom ordering drilled tanks and waiting forever to get them. It works great!

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