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Best Drill Bit for Glass Reviews

Last Updated: 22.01.22


What are the best drill bits for glass in 2022?


If you’re only interested in a quick suggestion for a good drill bit for glass and aren’t interested in reading many drill bit reviews, then the following short paragraph should tell you everything you need to know. Among all the products we’ve looked, the Yosoo Yos-7895 drew the most appreciation from customer and specialist reviewers alike, thanks to their remarkably good value for the price and ease of use. Since their diamond-plated shanks are relatively stubby, you won’t have much trouble in angling the drill just right to make it catch on the glass, ceramic or tile. For drilling narrower holes, we recommend the Drilax 30PCSMIXED round chisels.



Buying guide


There’s probably no such thing as the best drill bit for glass, with every constructive solution being aimed at meeting a particular need, but there is a large enough variety of glass drills available for sale as to pose some problems in finding the right one. Here are some things to be mindful of when making your purchase.



Always consider the specific task you have in mind when accounting for size since common glass drill bits run the gamut from 1 to 10 mm in thickness. You might want a nearly half inch hole to drive some cables through a garage window, but this won’t look too good on the porcelain figurines you want to hang on the Christmas tree.  

Small sizes are especially deceiving since the difference between 1 mm, and 3 mm can be very noticeable, that’s why it is highly recommended to buy a set covering as many ranges as possible, although the need for it might not be apparent in the store.

If cost is a concern, then consider just going for a cheap set, especially if you’re not a professional, since most diamond plated drill bits are tough enough to make for good value, regardless of cost.




We can’t stress this enough; a proper technique is fundamental when drilling through a hard and brittle material. So important in fact that you’ll find whole sections dedicated to it in many drill bit for glass reviews.

First, the surface must constantly be lubricated with water, since the contact area will get very hot. You start drilling at a 45-degree angle until the edge of the drill leaves a discernible mark upon the glass, to which the grinding head can then “latch on” to.

Once you’re confident that you have enough of a gritty surface to keep the head on the mark and not have it swerve out of place, then turn it to 90 degrees and push it until it grinds through the other side.



Shape and material

Short and stubby drill bits with a flat tip offer significantly better stability than nail-shaped ones and will make your job easier overall, but it can be hard to find these in small diameters.

Spearheads are the easiest to work with, but they are particularly flimsy and almost always wider than 5 mm.

Drill bits for glass are generally made of steel with diamond or tungsten carbide plating. None of the two offer any significant advantage, but tungsten is generally considered more resilient and harder to wear off.



3 Best Drill Bits for Glass (Updated Reviews) in 2022



The products showcased below exhibit the qualities you might want from a drill bit for glass and proved to be the most popular with owners and reviewers alike.



1. Yosoo Yos-7895


This product surprised its customers with the good functionality it offers at a very affordable price. It is also remarkably easy to use for drawing holes into glass, ceramic or tile with only minimal preparations.

Most people prefer to use it with a couple of layers of masking tape on a pre-wet surface since the area of contact gets very heated. This flat tipped drill basically operates by grinding through layer upon layer of glass or ceramic with its hard diamond coating, and this causes a huge amount of friction.

The package contains no less than 15 pieces, ranging in outside diameter from 6 to 50mm and with 5.4 to 9mm for the shank, which gives it good inter-operability with whatever equipment you’ll be using and also a good range for the perforations it can perform.

The only complaint we found has to do with the material of the bit itself, which appears to be lighter than high carbon tool steel, but this isn’t such a great downside since it’s not the steel doing the punching.

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2. Drilax 30PCSMIXED 


This Drilax set is especially good if you want to perforate small holes into porcelain decorations and glass jewelry.

It features no less than 30 diamond drill bits, with sizes varying from 1 to 3 mm, so they are very convenient to replace once they get worn out.

While the manufacturer does warn that they are rather fragile (which shouldn’t be considered such a great downside for the price) customers find that they hold well enough to multiple uses and can be used on a wide variety of surfaces without any significant loss in performance.

Due to their rather long shaft, they can be tricky to use, however, and some people might need to experiment a little or watch instructional videos before getting to employ them properly.

As we’ve previously noted, the surface must constantly be lubricated, and the initial incidence angle should be at around 30-45 degrees until the drill bit “catches on.”

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3. Vermont American 13310


These Vermont American drill bits employ a pointed spear tip design, which makes it particularly easy to leave an initial scratch on a glass or porcelain surface for the rest of the bit to follow through.

You’ll only get four pieces to a set, but judging by the customer reviews, this shouldn’t be a problem since their tungsten carbide coating can be put through a lot of use and still hold strong. (While not as hard as diamond, tungsten plating is generally recognized as holding better over time)

People commonly employ it for drilling holes in thick glass bottles, such as those used for whiskey and ceramic tiles with little decrease in performance fro job to job.

You get them in 5, 6, 7 and 8 mm in width, which offers a good range but sadly, lives little place for redundancy. They can be adapted to any commonly sized drill chuck, from ⅜ inches and above.

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