Worked perfect for my use By Ethan on 2/16/14
Ethan would recommend this product to a friend
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
Greg would recommend this product to a friend
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
Doug would recommend this product to a friend
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!
Easy to Use By Steve on 1/21/14
Steve would recommend this product to a friend
I used the 45mm bit for two 1" bulkheads. I laid the tank on it's side, put duck tape over where I wanted to drill to help the bit "catch" and ground away! I worked so well I decided to drill a 3rd hole after the tank was standing up again!
Perfect! By Harry on 12/9/13
Harry would recommend this product to a friend
Used the 3/4, 1, and 1.5 drill bits and they were easy to use and did exactly what they were supposed to do!
Cost can't be beat By Bryan on 11/29/13
Bryan would recommend this product to a friend
Look around on the net and you'll soon find these are the most cost effective solution out there. They are only useful for a limited number of uses, but let's face it, once our tanks are drilled the bits usually collect dust.
Works as advertised By Quinn on 11/26/13
Quinn would recommend this product to a friend
I was extremely nervous about drilling my nano-cube. After watching a few videos and trying it out on a piece of thin glass, purchased at Home Depot for like $4, I drilled my first hole in about 4 minutes time. Now I have drilled 5 holes in aquariums with absolute success. The one bit of advice I can give is: DO NOT APPLY ANY EXTRA PRESSURE, let the weight of the drill do the work. And yes a drill guide does help to get a nice straight start. I found one at Dixieline here in the San Diego area.
Perfect By G Hoover on 11/18/13
G Hoover would recommend this product to a friend
Great price. Have drilled a total of 11 holes and have no problem. Keep water on glass and bit and works like a charm. Perfect to drill your own tank
Awesome! By George on 9/2/13
George would recommend this product to a friend
The bit worked like a charm and shipping was fast!!
great quality and price By Hunter on 8/14/13
Hunter would recommend this product to a friend
I priced these out many places, And Bulk Reef Supply
has the best price and great quality
Easy for a first timer By Nathan on 7/28/13
Nathan would recommend this product to a friend
I had never drilled glass and was very nervous about breaking my tank. After watching the video I knew I was ready. The bit worked like a charm. Drilled two holes, side by side, and everything went smoothly. Can't wait to drill some more.
Excellent!!! By Tripp on 7/10/13
Tripp would recommend this product to a friend
Ordered and received the bits quickly! These bits start real easy if you hhold at a slight angle then slowly straighten up. they cut right through with no issues. I had three holes cut through my new tank in less than 5min with a plumbers putty water dam. Great bits and great service Highly recommend!
Great bit,fast delivery! By Fred on 6/29/13
Fred would recommend this product to a friend
GREAT BIT!! Worked perfect first time! Thanks BRS!
Happy with purchase By Skyhawk on 6/15/13
Skyhawk would recommend this product to a friend
I've bought 3 of these now (different sizes). No trouble at all. Getting my holes done myself saves me time and money.
long lasting! By Tim on 5/15/13
Tim would recommend this product to a friend
I haven't drille glass before and was very nervous, I started very slow on a practice piece of glass, it went well i then drilled my display 1/2 glass three times and now I had the hang of it. I drilled four more holes no problem and I let a friend use it, he drilled over 20 more holes and it still works. I am very impressed and bulk reef is the first place i check when I need anything.
Worked Perfect! By Seth on 5/5/13
Seth would recommend this product to a friend
I've never drilled glass before but after watching the BRS video and buying the bit, I can now say I have a perfectly cut hole in my sump. Thank you BRS!!
Good price does the job By Jeff on 5/4/13
Jeff would recommend this product to a friend
Drilled as it was suppose to.
pretty impressed By eric on 4/15/13
eric would recommend this product to a friend
1st time drilling glass and couldn't have worked smoother. Followed the BRS video and set the tank to drill horizontally and built a little dam to hold water around the bit. I went without a guide tilting the drill about 20 degrees to get it started and slowly squaring it up. Took less than a minute to go through a 1/4" wall.
Worth the money By Brandon on 4/9/13
Brandon would recommend this product to a friend
This is the first tank I have drilled and I was very worried about it but these bits are very high quality and made it very easy. After I drill the first hole now I don't worry about it anymore. Thanks BRS also for the great video's to go along with it. The Drill press stand helps a lot also. Just be careful hard to tell how hard you are really pushing on it when you get the springs compressed down a ways.
Easy By Matt on 4/6/13
Matt would recommend this product to a friend
I couldn't believe how easy it was to drill glass. I made (4) 48mm holes in my 40 gallon breeder. They were all at the same height on the back glass of the tank. I don't think I could have kept the bit steady without making a wood jig. It took me about 20 minutes of drilling per hole.
awesome prices here By John on 3/28/13
John would recommend this product to a friend
best prices i could find for these
Good for the price By Ronald on 3/24/13
Ronald would recommend this product to a friend
Little on the cheap side of bits, quality wise. Great buy for the money, and preformed as advertised drilled 8 holes before the bit started to show wear. BRS site was a little confusing in determining what size to buy for the 3/4" Schedule 80 Bulkhead Slip X Thread Dimensions, which state to use the 45mm, but the bit page stated to use the the 42mm. Glad I went with the 42 its a perfect fit. One key advice. take it slow and keep it wet and cool while drilling .
Easy to use By Travis on 3/15/13
Travis would recommend this product to a friend
I was a little nervous at first to dill the tank but it was so easy with this tool. I got the 48mm bit and drilled two holes in less than 20 minutes.
Worked just like it was suppose to. By Rick on 3/15/13
Rick would recommend this product to a friend
First time drilling aquarium. Watch videos from BSR and project went smoothly. With no problems drilled 3 holes in aquarium for bulk heads easily with bit, A great price also.
Great tool By James on 3/11/13
James would recommend this product to a friend
Works just like I expected. Followed instructions on YouTube and I was done in a matter of minutes.
Quality Bit, Chewing Through 0.25 Inch Glass By Greg J on 3/5/13
Greg J would recommend this product to a friend
I ordered two of the 45 mm bits with a total of 5 holes to drill, i figured "better safe than sorry", i'm happy to report that with a slow drill speed and constant water flow, these bits will last, even in thick glass. These may be a dollar or two more than other places, but it's so convenient to get the bulkheads and the hole saws in the same box with one shipping charge.
Will buy again.
Great Value By Paul on 2/25/13
Paul would recommend this product to a friend
The product was very economical and a high quality product. Perfect for DIY'rs. Alternative bits from other online suppliers are far more expensive for the same quality. I have seen the bits as high as 65.00 a bit at other places. So in short THREE thumbs up. Thank you BRS for carrying these at affordable prices.
Worked Perfectly By Russell on 2/14/13
Russell would recommend this product to a friend
I bought this drill bit in order to drill my tank for an overflow. I have since drilled two more tanks with this same bit and it continues to cut great! Do not be afraid to drill your tank, with the low cost and quality of these bits you cant go wrong!
Works Okay By Moss on 1/28/13
Moss would recommend this product to a friend
I had some oscillation with my larger bits( shaft was not perfectly concentric). It still worked fine, just had to cut slower.
Good quality By Streamin on 1/28/13
Streamin would recommend this product to a friend
Ordered a 35mm and a 45mm to drill overflows and returns in my tank. Made quick work of the 1/2" glass on my aquarium with very minimal chipping (almost unavoidable in thicker glass). Would recommend for anyone needing to drill a tank.
Exactly what I needed. By Kerry on 1/24/13
Kerry would recommend this product to a friend
Bought the 1" bulkhead. BRS support said I needed the 45mm drill bit. They were right. Was a breeze to drill my 75g, especially since a local glass shop was going to charge me $20/hole. Well worth the money and time.
High quality By preston on 12/9/12
preston would recommend this product to a friend
easy to use drilled 3 holes in my tank with ez
Works awesome! By Matt on 12/4/12
Matt would recommend this product to a friend
I ordered a 45mm bit to drill 5 holes in the back of my 120 gallon for the 1" ABS Bulkheads. The glass was 1/2 inch thick. I was worried this bit would burn up or wear out before I was able to finish all the holes. However, I completed all 5 holes in about 2 hours (First time grinding glass and I was very cautious, maybe to cautious) and kept a steady stream of cold water on the bit. It worked like a charm and the bit is still in brand new condition ready to make more cuts!!! Definitely give this bit a try. Great Value!!!
drilled 2 10g By flipper on 12/4/12
flipper would recommend this product to a friend
I drill two holes for 3/4" bulk head when making a custom sump. I was skeptical about it beacuse of the price, but they worked out great and didnt even break the thin glass of 10g aquarium. Then used it on making a 60g cube reef ready. Great item and a great price
Dont be afraid to drill! By Excellent Value on 11/29/12
Excellent Value would recommend this product to a friend
Drill bits worked as advertised, cut through 1/4" glass easily. Used a cheap cordless drill with clutch. Didn't need drill guide just held bit at angle to establish a groove.
Great tool! By TridentSSBN on 11/24/12
TridentSSBN would recommend this product to a friend
Used this for my custom sump for my new tank. I have to say that it worked great. Worth every penny.
No problem By Ryan on 11/14/12
Ryan would recommend this product to a friend
I was a little nervous at first, with this being my first time drilling glass although it turned out to be a breeze. I purchased the 65mm bit for sch80 1 1/2" bulkheads and drilled 3 holes no problem. It seems like it would be hard to "mess up" unless you are carless. Easy and slow is the way to go.
Great Product By Remy on 11/10/12
Remy would recommend this product to a friend
I have began to convert all of my old non-drilled glass tanks with these drill bits and they work phenomenally. I have drilled 11 holes and the bit is still as good as new. The last three were half inch glass and this drill cut through them in no time, maybe 3 minutes each. Fantastic tool and a must have if you want to utilize a sump system. Forget buying an external overflow siphon, for a fraction of the price you can create a fail-safe drilled tank that looks awesome!
Great Product By Bill on 11/4/12
Bill would recommend this product to a friend
I used the 45mm on a 20 gallon tank. Super easy, and drilled through in about 3 minutes.
Great By Vitiock on 11/1/12
Vitiock would recommend this product to a friend
Simple and easy to use while following instruction on BRS TV, also you know you're getting the right size if you match the size that the bulk head states it needs on it's product page.
Great product/cost By Steven on 10/26/12
Steven would recommend this product to a friend
I purchased this to drill four holes in three 40gal breeder tanks that I'm using for my custom refugium under my 320 setup. After I was done with the four holes the bit looks like its still has plenty more to go, and for the price should I ever need to drill again, this is the only place I will purchase from PERIOD!!!
Quality and Low price By Bill on 10/24/12
Bill would recommend this product to a friend
Once again, quality product at a great price! And with the How-To videos you can't go wrong with BRS!
Great By Newton on 10/16/12
Newton would recommend this product to a friend
Used it to drill two bulkhead holes for my overflow and my return. Worked perfectly as it was designed to do.
Sharp By joe on 10/2/12
joe would recommend this product to a friend
This bit is sharp and priced reasonably. Well worth the price ad can use used time and time again. A great buy for the DIY.
First time success! By Jay on 9/24/12
Jay would recommend this product to a friend
I drilled my cornerflo tank for a extra bulk head to run another overflow and quite things down. I was nervous about drilling but after watching the how to videos it went really easy. I would recommend a guide for multiple holes or where your concerned with spacing as the 45 deg angle technique worked but could be challenging with limited space.
great tool By Todd on 9/20/12
Todd would recommend this product to a friend
Just got my 48mm bit today and started practicing. I am definitely getting the drill guide before i go crazy on my display tank. But this thing works great. The price is great too
DIAMOND COATED GLASS DRILL BITS By Doel on 9/14/12
Doel would recommend this product to a friend
Great product a little hard to control at first but the more you use it the easier it is. I recomend the drill guide if it's your first time to drill glass it will help you drill it right where you need it not where it wants to go.
Great price By Mike on 8/30/12
Mike would recommend this product to a friend
I was a little nervous about the quality of these since they are so cheap but it worked great. Granted I've only cut one hole so far, so I'm not sure how long they last, but I got a clean hole and couldn't have asked for more.