The 11 Best Drill Bit for Granite (Reviews & Buyer’s Guide)

Granite is a luxury material so it is no surprise why many people love to incorporate it into their homes and other high-end projects. Other than that, the material is quite durable and comes in various finishes.

Now, you may find yourself wanting to create holes in the material for one reason or the other, but this material presents a challenge during drilling. This is mostly because it is quite brittle irrespective of its overall hardness.

That leaves you with no other option than to use the best drill bit for granite. The last thing you want is to ruin your equipment or create cracks on your granite.

We have put together this guide to help you ensure that does not happen so you may want to keep it here for more.

High Quality Granite Drill Bit: Comparison Table

Not in a position to read the entire review? No worries. We have put together the following comparison table that gives you a quick overview of our top choices.

That should help you make a fast and informed decision.

Picture
Top Pick
Drilax Diamond Drill Bit 10 Pieces Set 5/32 3/16...
Editor's Choice
Bosch HCBG700 7-Piece Blue Granite Hammer Drill...
Budget Friendly
Dry Diamond Drill Bit Set,BGTEC 10pcs 1/4" 6mm...
Also Great
SHDIATOOL 6PCS Diamond Core Drill Bits Set for...
Sunjoyco Diamond Drill Bits, 30 PCS Glass Hole Saw...
SHDIATOOL Diamond Core Drill Bits 1-3/8 Inch for...
Product Name
Drilax Diamond Drill Bit 10 Pieces Set 5/32 3/16...
Bosch HCBG700 7-Piece Blue Granite Hammer Drill...
Dry Diamond Drill Bit Set,BGTEC 10pcs 1/4" 6mm...
SHDIATOOL 6PCS Diamond Core Drill Bits Set for...
Sunjoyco Diamond Drill Bits, 30 PCS Glass Hole Saw...
SHDIATOOL Diamond Core Drill Bits 1-3/8 Inch for...
Weight
4.8 Ounces
13.4 ounces
4.4 ounces
1.65 pounds
16 ounces
8.8 ounces
Brand
Drilax
Bosch
BGTEC
SHDIATOOL
Sunjoyco
SHDIATOOL
Prime Status
-
Top Pick
Picture
Drilax Diamond Drill Bit 10 Pieces Set 5/32 3/16...
Product Name
Drilax Diamond Drill Bit 10 Pieces Set 5/32 3/16...
Weight
4.8 Ounces
Brand
Drilax
Prime Status
Price
Editor's Choice
Picture
Bosch HCBG700 7-Piece Blue Granite Hammer Drill...
Product Name
Bosch HCBG700 7-Piece Blue Granite Hammer Drill...
Weight
13.4 ounces
Brand
Bosch
Prime Status
Price
Budget Friendly
Picture
Dry Diamond Drill Bit Set,BGTEC 10pcs 1/4" 6mm...
Product Name
Dry Diamond Drill Bit Set,BGTEC 10pcs 1/4" 6mm...
Weight
4.4 ounces
Brand
BGTEC
Prime Status
-
Price
Also Great
Picture
SHDIATOOL 6PCS Diamond Core Drill Bits Set for...
Product Name
SHDIATOOL 6PCS Diamond Core Drill Bits Set for...
Weight
1.65 pounds
Brand
SHDIATOOL
Prime Status
Price
Picture
Sunjoyco Diamond Drill Bits, 30 PCS Glass Hole Saw...
Product Name
Sunjoyco Diamond Drill Bits, 30 PCS Glass Hole Saw...
Weight
16 ounces
Brand
Sunjoyco
Prime Status
Price
Picture
SHDIATOOL Diamond Core Drill Bits 1-3/8 Inch for...
Product Name
SHDIATOOL Diamond Core Drill Bits 1-3/8 Inch for...
Weight
8.8 ounces
Brand
SHDIATOOL
Prime Status
Price

Buying Guide – How to Pick the Best Drill Bit for Granite

As you begin the journey of finding the perfect drill bit for granite, it is important to consider several factors that will influence your purchasing decision.

Some of these factors include:

Bit Size

Drill bits come inches or millimeters and they often range between 1-50 millimeters in diameter. Of course, you will require different sizes for different sizes and it would therefore make sense to get a set of different bit sizes.

For tinier and precise holes, you will require smaller bits and for rounded edges, larger bits will do the job.

Bit Material

We have already mentioned that granite is a brittle material and can therefore crack or shatter if not handled properly during drilling.

As such, you want to go for carbide, diamond, or diamond-coated bits. This is because the said materials work great for precision drilling with less likelihood of damaging your granite surface.

Bit Shape

Generally, drill bits will come with circular or arrowhead tips. Arrowhead tips work best for drilling smaller holes while circular ones drill holes and circles required for wiring or pipework.

In the end, you want to pick drill bits based on the hole size you want so again, getting the bits in a set would be a wise decision.

Review of the Best-Rated Drill Bit for Granite

You probably have no idea where to begin shopping for drill bits and understandably so because the market is saturated.

However, we have reviewed some of the best-selling drill bits for granite to help you make the right choice.

1. Drilax 10 Pieces Set Diamond Drill Bit

To start us off, we have this unit from Drilax that comprises a premium quality diamond build. This simply means that you can rely on this product’s longevity.

Another thing is that the drill bit can be used to drill through thicker material effortlessly.

What We Liked About It

If you are in the market for the easiest and fastest way to bore holes through your granite countertop or floor, you have to consider this set because it offers just that.

However, what we love most about this set is that it can be used by professionals and hobbyists alike and can cut through materials other than granite.

What Could Have Been Better

Some users have complained that this product’s user instructions are quite vague making it difficult to use it.

We feel that the manufacturer should have made the instructions clearer to avoid the same.

Pros

  • Reasonably priced
  • Can cut through other materials
  • Durable

Cons

  • Unclear instructions

2. Bosch HCBG700 7-Piece Drill Masonry Bit Set

No doubt, you want to make clean holes on your granite. This drill bit set is perfect for the job simply because it offers precision drilling.

It features a carbide tip that works to prevent pressure and cracking as well as longevity.

What We Liked About It

The 7 pieces in this set are especially useful if you are planning to use them for applications such as drilling holes through granite and mirrors or setting screws in concrete. That makes it quite versatile.

Other than that, the bits feature a three-flat shank design to provide a better grip and ultimately prevent slippage. You will also find it extremely easy to install the bits.

What we loved most however is that the bits come with a carrying case that makes storage easier and protects them from damage.

What Could Have Been Better

This product’s description claims that the bits work for stone and masonry but some users have complained that the bits do not function as expected on the said materials.

We feel that the manufacturer should have been clear on that to avoid customer mistrust.

Pros

  • Highly functional
  • Long-lasting
  • Comes with a carrying case

Cons

  • Not as efficient on concrete

3. BGTEC Drill Bit Set

If you are looking for a drill bit set that can be used on various materials including plastic, glass, concrete, or even granite, this has to be it.

Besides, it has wax on the inside to provide lubrication and cooling. This means that you never have to worry about overheating.

What We Liked About It

This product also features Vacuum Brazed diamond technology and what that does is provide you with great efficiency, faster cutting, and durability.

As is that is not enough, the bits are so easy to use especially on granite making them among the favorite drill bits for granite and ideal for beginners.

The best part when it comes to this product for us is that it is among the most affordable options on this list even with all its features. That gives you value for money.

What Could Have Been Better

According to several users, this product’s tips wore down after several uses. We feel that the manufacturer should have used a little bit more coating for the tips to avoid this.

Pros

  • Versatile
  • User friendly
  • Value for money

Cons

  • Not as durable

4. SHDIATOOL 6PCS Drill Bits Set

It’s no secret that drill bets tend to overheat during drilling because of the friction created but that does not have to be your reality.

How so? Well, the inside of the drill bit contains dense wax that cools the bits during drilling. With its Vacuum Brazed technology, this product is also ideal for drilling in dry and wet conditions.

What We Liked About It

These bits feature a high-quality diamond grain and high strength steel construction. Can you guess what that is for? Durability!

Another great thing about this product is that it provides rapid and smooth drilling as well as longer life. We love that about it.

What Could Have Been Better

Unfortunately, the diamond coating on these bits appears not to cover the entire tip. We feel that the manufacturer should have concentrated on giving the bits whole coverage to avoid the same.

Pros

  • Great precision
  • Easy to remove
  • Dry/wet drilling

Cons

  • The diamond coating could be more

5. Sunjoyco 30 PCS Diamond Drill Bits

You get a whopping 30 pieces when you purchase this product. Surely, there is no drilling project that you cannot attempt with that.

Whether you intend to drill through fiberglass, marble, porcelain, or granite, this has to be your best bet.

What We Liked About It

You do not have to worry about quality with this set simply because these bits feature a nickel-plated and industrial-grade carbon steel build that offers longevity and corrosion resistance.

The diamond coating gives you superior cutting strength for all the clean holes you may want on your granite.

We love that with these bits, you get efficient and faster outcomes every time.

What Could Have Been Better

Regrettably, these bits tend to overheat. We feel that the manufacturer could have fitted them with denser wax on the inside to prevent that.

Pros

  • Superior quality
  • Wide application
  • Accurate

Cons

  • Tends to overheat

6. SHDIATOOL Diamond Core Drill Bits

As a brand, SHDIATOOL endeavors to produce high-quality power tools and they outdid themselves with this one. With these drill bits, you get to easily cut holes through concrete, marble, or granite.

They are also easy to operate making them extremely user-friendly and suitable for beginners.

What We Liked About It

If you are searching for drill bits that will stand the test of time, you have to consider these simply because they are built to offer durability.

Another great thing about them is that they can be used to cut through other materials aside from granite giving you the versatility you need for your drilling applications. We love that about it.

What Could Have Been Better

Even though the product description states that this product can drill through different materials, some users have complained that it did not cut through porcelain.

We feel that the manufacturer should have used stronger material for the tips to counter that.

Pros

  • Thick
  • Versatile
  • Easy to use

Cons

  • Not for heavy-duty applications

7. SHDIATOOL Dry Diamond Drill Bits

You do not have to use water to stop these drill bits from overheating. Simply because it contains wax inside for cooling. We bet you will appreciate the convenience that comes with that.

The bits can also be used for multipurpose drilling so whether it is ceramic, porcelain, or glass, bring it on!

What We Liked About It

Precision is what you want whenever drilling through granite and that is exactly what you will get when using these drill bits.

We love that the tip is designed in such a way that reduces breakouts. They are carbide-made as well and what that means is that you get to enjoy a longer life.

What Could Have Been Better

As reported by some users, these bits will not drill through harder materials even though the product description claims that they are multipurpose.

We feel that the manufacturer should have used better quality material during construction to make that possible.

Pros

  • Highly efficient
  • Multipurpose
  • Wax for cooling

Cons

  • Tips could be stronger

8. DAMO 1-3/8 inch Diamond Core Drill Bit

With a 5/8-11 thread, this product will fit on most high-speed grinders and we believe you will appreciate this.

You also do not have to use water to prevent this product from overheating meaning you can use it anywhere.

What We Liked About It

The bits in this set feature a Vacuum Brazed Technology that provides you with rapid and aggressive cutting on granite. That means you get to save time and energy.

Moving away from that, this product is built to offer durability so you do not have to think about your next purchase anytime soon. We love that about it.

What Could Have Been Better

These bits tend to overheat as reported by some users and we feel that the manufacturer should have put a mechanism in place to prevent that from happening or reduce it.

Pros

  • Can be used without water
  • Sturdy
  • Built to offer durability

Cons

  • Tends to overheat

9. Jashtool Diamond Drill Bits

We know you are mostly here because you are looking for high-quality drill bits for granite and this set from Jashtool works just fine for that.

What you probably do not know is that these bits can also be used for making jewelry because it cuts accurate holes.

What We Liked About It

These bits feature a diamond construction to give them the strength required to cut through granite, porcelain, and ceramic. The body features a steel and nickel build meaning and that assures you that there will be no breakages.

The manufacturer also inserted wax into the bits to provide the cooling and lubrication needed during drilling without having to add water.

The bits also have a groove and hole on the side for removing any debris from drilling. We love that about it.

What Could Have Been Better

The manufacturer of this product should have made it with durability in mind seeing as some users have complained that the bits fell apart after several uses.

Pros

  • Thick
  • Warm
  • Different sizes

Cons

  • Not as durable

10. Neiko 00823A 5 Piece Drill Bit Set

You will get to enjoy a sharper cutting edge and optimal performance with this bit set. Why? Simply because it comes with a diamond coating.

It is also nickel-plated for corrosion resistance and extended life. As if that is not enough, it comes with side holes to facilitate slug removal after drilling.

What We Liked About It

This unit is ideal for anyone who likes to engage in DIY projects seeing as comes with five pieces to offer versatility. That does not mean that it cannot be used for professional applications either because it can.

What we found most appealing about this set is that it is extremely easy to use making it the perfect companion for DIYers and novices alike.

What Could Have Been Better

Judging from reviews, this product does corrode and we feel that the manufacturer should have used more nickel coating during construction to avoid the same.

Pros

  • Sharp cutting edge
  • Built for longevity
  • Easy to use

Cons

  • Prone to corrosion

11. Diablo by Freud DMARG1220-S5 5 pc Drill Bit Set

How would you love to save up to 30% of your income? You get to do that by purchasing this bit set. The carbide tips can withstand high heat applications as well as impact giving your bits an extended life.

The bits are also corrosion-resistant so rust is not a concern when it comes to this set.

What We Liked About It

This kit does not have as many bit sizes but the 5 pieces it has are commonly used. This makes it a great choice for both home and professional use.

We love that the bits can be used to cut holes through a variety of materials including plastic, ceramic, and granite. We call that versatility.

What Could Have Been Better

Some users have reported that this product arrived with some bits missing and we feel that the manufacturer should have included a carrying case to reduce the likelihood of missing parts.

Pros

  • Corrosion-resistant
  • Versatile
  • Durable

Cons

  • Could use a carrying case

Granite Drilling Tips

You now know what options are available to you when it comes to granite drilling so how about some tips to help with your experience drilling through the material?

1. Put on protective gear before you start drilling to protect yourself from injury. We are talking about gloves, a dust mask, and safety goggles.

2. Measure and mark on your granite surface where you intend to create holes. After this, put on some masking or duct tape along the cut lines.

The tape is supposed to give your bit a bit of traction as you cut into the granite.

3. Granted, granite is a solid material, but it is also very brittle especially at the edges and this can cause the bottom of your holes to explode while drilling.

As such, you want to put a piece of scrap stone beneath the drilling point to get a cleaner cut from the top to bottom.

4. Use water to cool down your drill bit once you begin drilling if it does not contain wax for the same. Be careful if you will be spraying water and using a corded drill to avoid electrocution.

5. Do not apply too much pressure while drilling as you only risk cracking and stressing your granite surface. Moderate pressure works just fine.

6. You want to try drilling through a scrap piece of granite if you have never done it before. Practice until you perfect the art.

You see, granite is an unforgiving material and you do not want to risk making any mistakes as they will have a permanent impact on your result.

Frequently Asked Questions

We believe you have a question or two as far as the best granite drill bits and for that, we have addressed several commonly asked ones about the same.

This is supposed to help you get a clearer insight on the same.

Can a masonry bit cut through granite?

You can attempt to do that but is not advisable. You see, a masonry drill bit is not strong enough to drill through granite but if you have to do it, it is important to put a bottle cap over the spot you want to cut through with the opening facing upwards.

What is the best drill bit for granite?

You will require specialized tools to cut through granite. The best drill bit for that has to be a diamond core drill bit. These come in a variety of heights and diameters so pick your accordingly.

What is the best way to drill a hole through granite?

First, you want to attach a diamond-tipped bit to a power drill. The diameter of the bit should match the diameter of your fixture or a bit larger.

Then, you want to dip the diamond tip in cutting oil to keep the drill cool and lubricated. After this, you can begin drilling.

Our Top Pick

All the 11 products we have reviewed are of high quality but if we had to choose one as our top pick, it would have to be the Drilax 10 Pieces Diamond Drill Bit Set.

This product is set to provide you with the durability you need for all your power tools seeing as it comes with a superior diamond build.

Still, on the build, these bits can effortlessly cut through thicker materials other than granite making it versatile as well.

You may also want to opt for this set if you want an easy and fast option for cutting holes through granite. What we loved most however is that this product is user-friendly hence suitable for beginners.

It is also reasonably priced even with all the aforementioned features thus giving you value for money.

Conclusion

Granite countertops and floors come with several benefits seeing as this material is quite durable and aesthetically appealing.

You may also want to note that it is quite expensive and brittle so if you have to cut through it, you have to be very careful not to create cracks.

With the best drill bit for granite, you can achieve clean-cut holes and with this guide at your disposal, you should be able to make the right choice. We are waiting on you to do that.

Leave a Comment