How To Drill A Hole In Glass Bottle? Step By Step Guidelines

How To Drill A Hole In Glass Bottle

It’ll just take a minute to do the job!

But wait! If you’re a beginner, then you must go through all the steps right from the basics to meet that time limit. Because drilling a hole in glass bottle is pretty tricky!

So besides owning the skill of crafts, it’s time to achieve the skill of using drills. Sounds tough, doesn’t it?

Don’t worry! Here you’ll get to learn the WHOLE process of how to drill a hole in glass bottle.

I’ve made the steps very simple and easy so you can understand everything fast and craft the glass bottle faster.

Tools You’ll Need

1. Glass Bottle

Glass Bottle

First, settle on a glass type you’d like to drill. Make sure your bottle isn’t made of tampered material since it’s very easy to shatter.

2. Drill


When it comes to the drilling, make sure the motor comes with variable speed. It’s important to use a heavy-duty drill for the project. If you already have one, it’s great. But in case you don’t have it, then you can buy Milwaukee 2407-20 M12 drill driver.

It’s a cordless power tool that can easily fit any bits and make some super-smooth holes in your bottle. Also, you’ll love the compact size, lightness and durability making it one of the best to have.

3. Drill Bits

Drill Bits

Drill bit is a VIP (I mean Very Important Piece). It has to be sharp, robust and just right!

Usually, you’ll find bits that have been specially designed to drill through glasses with ease. So, DON’T grab the one randomly just because you have it. You can ask an expert or seller at a local hardware store to help pick right.

There are two common types of drill bits that you can consider. Diamond and Carbide.

a. 3.1 Diamond

Diamond bits are the best for sea glasses, marble and stones. Since you’re planning to drill a glass bottle, I’d say, go for this one.

You can use it to drill holes at 1/4-inch or bigger and see it create a smoother result. Diamond bits would barely cause any breakage and that’s why they are more popular.

If you want to make small holes, then pick a piece with tough, flat tip. Many of them are even available in 0.75mm.

Don’t have one? Then consider grabbing BLENDX FBA-bx-022 that gives you a set of 10 pieces. They are alloy steel-based bits that are super solid and sharp. The bits even have pleased tons of users with their smooth hole work.

The set also includes diamond grit hole saws. You can explore the size variations and use them accordingly.

In case you’re planning to use different hole saw, then get yourself an auto-start mandrel tool. It’ll let you fit different types of hole saws on the drill. However, make sure the tool is compatible with the hole saw, because many brands design them to be used with proprietary products only.

b. 3.2 Carbide

Carbide bit can smoothly drill non-tampered glasses, tiles and ceramics. It boasts a shape tipped point and resists the friction of drilling through a glass.

However, many carbide bits become easily dull. So, make sure you get the solid ones. I’d personally suggest you BOSCH GT2000. You’ll get a 4-bit set and all the pieces can smoothly make a hole in your glass without getting damaged.

The ideal sizes for the project would be 1/4 or 1/8-inch. However, you can opt for other sizes depending on your preference.

4. Safety Gears And Other Stuff

Safety Gears And Other Stuff

Before you step into the process, grab all the safety gears to protect yourself. Wear gloves and goggles.

Besides, you would need masking tape, permanent marker and spray bottles that’ll help you work more safely.

How To Drill A Hole In Glass Bottle- The Steps

Step 1: Prep Work

  • Place the bottle on a very flat surface. This will keep your bottle steady. 
  • The wise thing you can do here is to use a firm cushioning material like a rubber pad. It’ll help cushion the surface while providing extra support. The pad will also make sure the glass bottle doesn’t slip while drilling.
  • Then, complete the step by clamping the bottle and the pad. Don’t forget to do it very gently!
  • Tape the area where you’re planning to drill with a masking tape. It will keep the bottle from shattering in various directions or from drifting as the drill applies the pressure. Stay at least 3/4-inch from the edge of the bottle to keep it from breaking.
  • On the tape, mark the reference area with a permanent marker so that it guides you while drilling. This will make sure you don’t accidentally make a hole in a wrong spot.

Step 2: Fit The Bit

Fix a small bit into the drill and secure it tightly. If you’re a beginner, start with 1/4 or 1/8-inch bits. This will help you create a dimple in the bottle at first. There’s actually a term for that. It’s called ‘pilot’ hole. This helps guide the following bigger bits while working your way up to the size of the final hole.

Step 3: Start Slow

Although the ideal range for drilling glasses is 600 to 750 rotations per minute, I’d suggest you start the drill at an extremely slow rpm. The harder your glass material, the slower your speed should be. Otherwise, it’ll generate heat and cause burn-marks around the tip bit.

Hold the drill perpendicular to the bottle. This way, you’ll be able to avoid chipping. Now, locate the speed dial on the power tool and set it up to lower level to slow it down.

Just note that squeezing the trigger fully will make the speed go to the top. However, the rpm range varies in models. Let’s say your drill has a speed of 0 to 1500 rpm. If you squeeze it halfway, you’ll have 750 rpm. Since you’ll be starting slow, your initial level should be 375 rpm. Make the pilot hole keeping that range.

Just keep experimenting with the tool, you should easily guess the speed of the drill through the vibration and sound of the motor.

Step 4: Speed Up Gradually

After the pilot hole, take out the tape and switch the bit for one the size of the hole that you’d like to make. Speed up the level at around 400 rpm. If you want, you can fit a bigger bit to make your pilot hole bigger.

Step 5: Time To Hole

Now start drilling at low to medium level. It’ll make a smooth, clean hole in where the bit enters and a sharp hole in where the bit exits the bottle.

Note down that you shouldn’t press too hard on the bottle with the drill or else you may break it.

When the drill-tip is closer to breaking through the bottle, relax the drilling pressure and speed. Because, this is when your bottle can become very brittle.

Step 6: Smoothen Up

After creating the hole, you may notice some rough edges. You have to smoothen them now. Use file or sand for the job and then rinse the dust away.

And it’s done!

Safety Tips For When Drilling A Hole In Glass Bottle

1. Keep The Bit And Bottle Cool

Use coolant since it’ll help prevent the drill bit from getting super-hot and causing damages. You can pour a tad of oil or water on the spot you’ll drill.

If you drill a harder glass bottle, then use more coolant. Not only the coolant will keep the drill bit or saw cool and lubricated but the bottle as well. Make sure to apply the coolant both before and throughout the drilling.

In case you use water, fill the squirt bottle with water so you can spray a mist of it around the bit. It’ll effectively help keep the bit and glass bottle lubricated.

If you notice any white powder when drilling, apply more spray water. You should slow down the procedure too.

Just watch out for the electrical cords when dealing with water and power tool.  The cord shouldn’t be anywhere near water.

2. Avoid Risky Get-Up

Don’t wear long and loose clothes. And dangling accessories such as bracelets, necklaces are a BIG NO-NO. Even your shirt shouldn’t have extra parts or long fringes that can cause accidents.

In short, don’t wear anything that can easily be caught in power tool.

3. Pick A Safe Location

Your location should be safe enough to drill without any concern. The place shouldn’t be easily accessible to kids or pets. Also, there should be ample space to move while you’re doing the operation, and to keep the lubricant distant from the power source and cord.

So, pick a location that meets these conditions.

Final Words

Drilling a hole through glass bottle is pretty easy if you’re an intermediate. For the beginners, it may need some practice. Thus, it’s gonna take extra time.

So, make sure you get spare bottles. You can also try other glass sheets for the same. It’ll be rather easier.

Once you get the hang of it, the whole drilling process would take just 1 or 2 minutes for you.

But before that, don’t think about the time. Be patient, drill slowly, sprinkle coolant and that’s it.

However, one of the struggles that you may face is finding the right bits for the glass bottle. That’s why I’ve suggested suitable options for you.

Now that you know how to drill a hole in glass bottle, you’d easily enjoy making beautiful crafts with them.

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