Best Diamond Core Drill Bit for Granite and Concrete: Reviews & Guide

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Your core drill is useless if the drill bit is broken. So, how is your core drill bit? Is it broken? Then you are definitely looking for the best core drill bit for your next purchase!

Well, finding the best core drill bit is not an easy job. You need to spend hours on research and experts’ advice to come up with one possible decision. But, don’t panic. Because we are right here for you.

To rescue you from time-consuming research and help you make the right decision, we are here to suggest some core drill bits that are top rated and highly recommended by the users.

Before moving on to the review, you should go through some key features to consider while purchasing a core drill bit.

Best Rated Diamond Core Drill Bit: Top Pick in 2022

On our research time, we got these core drill bits in high rank and most popular position.

Different brands of core drill bit available out there. But, all these aren’t of the same quality. So that, from our experience and days of research, we have brought you some heavy-duty core drill bits.

Here you will get a core drill bit comparison table and can compare some top-rated core drill bit of 2019. So, why late? Let’s see the comparison table right now!






Concord Diamond Core Drill Bit

Concord Diamond Core Drill Bit


1 Inch

Bosch Rotary Hammer Core Bit

Bosch Rotary Hammer Core Bit


4 In. x 12 Inch

EDiamondTools Dry Drill Core Bits

EDiamondTools Dry Drill Core Bits


9.5 Inch

Steel Dragon Tools Dry Diamond Core Drill Bit

Steel Dragon Tools Dry Diamond Core Drill Bit


1.5-inch to 2.5-inch

Stop Now Diamond Drill Bits

Stop Now Diamond Drill Bits



Read: Best Metal Drill Bits 

Best Diamond Core Drill Bit for Granite and Concrete 2022: Review & Guide

Now, we are here to suggest you some top-rated core drill bits you expect. Finding the high quality and durable core drill bit wasn’t easy.

We had to do in-depth research and analysis to pick the best ones to recommend you according to your need.

Here, you are going to find some diamond core drill bit to use on concrete, masonry and other various types of materials. Let’s get started with the first one!

1. Concord Blades CBW02500SP

Concord Blades CBW02500SP Wet Concrete Diamond Core Drill Bit
Use Wet Only
14" Tube Length
3.3mm Segment

There is no doubt that you are searching for the right diamond core bit. Here it is! The brand Concord blades have been selling this diamond core drill bit since 2014.

It’s still considered as the top-rated one for the last four years. So, you can easily understand its quality, performance and the level of user’s satisfaction over their products.

This specialty of the core drill bit is, it’s perfect for wet drilling and metal drilling. Besides, you can use the drill bit on any suitable drill and drill on cured concrete or heavy metal materials. Since the size of the bit is about 14 inches long, it’s recommended not to use it free hand.

Actually, these size drill bits are mainly used by the professionals. So, if you are looking for a fast cutting diamond drill bit for construction projects, it might be the ideal choice for you.

  • It’s durable
  • Used for wet drill only
  • Capable of fast cutting the materials
  • It comes with 14” tube that is great for professional use
  • You can use it for hard materials like steel and cured concrete
  • Dull quickly

2. Bosch HC8550

Bosch HC8550 4 In. x 12 In. SDS-max Rotary Hammer Core Bit
Longer Life
Faster Drilling 
Fast Dust Remove

Bosch is the name of the trust! They are a well reputed and renowned brand for producing high-quality tools and equipment. Also, in the case of the core drill bit, this brand is in the top rank.

Here we are recommending you one of the most popular diamond core drill bit by Bosch. It can also be used for multi types of materials. They have launched the drill bit in 2013 and since then it has gained popularity and satisfaction among the users.

So, the key identifying feature that ensures the great effectiveness of the drill bit is the wave design. Due to this specific design, the bit drills fast into concrete and another type of materials. Hence, if you are looking for a drill for any hard type materials, you can think about the Bosch HC8550.

Along with the performance, you might be wondering about durability. Well, for this drill bit, the tip of the bit is coated with carbide. Carbide coated drill bits are long-lasting.

So, you can expect it to give a durable performance and drill fast even after many years. Also, this drill bit is effective to use on different types of projects. Therefore, you can use the core drill bit to perform beyond the standardized range.

  • It drills fast
  • It’s durable
  • Comes with wave design
  • The drill bit top is carbide coated
  • High price

3. EDiamondTools Dry Drill Core Bits

EDiamondTools Dry Drill Core Bits
Premium Quality
Longer Coring Life
Designed for Drilling Masonry

The third diamond drill bit set belongs to the EDiamondTools. If you are looking for a heavy-duty core drill bit at an affordable price, here is the one for you. For the past three years, the brand has been consistently selling this drill bit set ensuring clients requirements are met.

Finding a multi-purpose drill bit set is easy, but purchasing the right one everyone desires. Therefore, to meet the desire matching with the requirements, the Ediamonds could successfully ensure a perfect blend of both in their dry drill core bits.

So, you don’t need to worry about its performance. It’s a great bit set that you can use on soft brick, masonry, and concrete.

So, this drill bit set can be easily used on hard materials. If you are looking for one drill bit set that you can use on diverse materials, then, diamond tools Dry Drill Core Bits can be your ideal decision.

4. Steel Dragon Tools Core Drill Bit

Steel Dragon Tools 3-Piece 1.5″ to 2.5″ Dry Diamond Core Drill Bit
Sturdy Construction
Diamond Core Drill Bit
Comes with Carrying Case

The Steel Dragon produces the perfect diamond core drill bit set that contains three piece tools from 1.5″ to 2.5″ drill bit. It has been 8 years since the Steel Dragon has launched the drill bit.

People are a bit skeptical about Chinese products. However, the Steel Dragon has successfully proved them wrong with their best-selling and overly satisfactory 3 pieces diamond core drill bit set.

From our in-depth research, we have found that this drill bit works wonderfully on block, brick, concrete and other hard materials. You can easily make the required size holes in any of the materials.

Also, the core drill bit comes with a strong case. And, the case makes it a portable set of device that you can easily carry anywhere for your projects.

I would like to mention another point that it’s one of the best quality drill bit set that you can purchase at an affordable price. So, you don’t need to worry about the quality when you are planning for buying a core drill bit set within budget!

  • Highly durable
  • It can drill up to 6 in.
  • The set comes with a portable and durable carrying case
  • The bit set includes a tapered pilot drill bit, SDS and Hex adapters
  • High price

5. Stop Now 12 Pcs Diamond Drill Bits

Stop Now 12 Pcs Diamond Drill Bits
Faster Drill Speed
Multi Purpose Use
Diamond Coated Drill Bit

When I was searching for the right diamond drill bit set for you, luckily I could pick two. After the Steel Dragon’s 3-piece drill bit set, here is another one by Stop Now.

It’s a more extended version compared to the Steel Dragon that comes with 12 pcs of Diamond drill bits set. Clearly, since there is a wide range of bits available, you can easily use them for multiple types of projects.

As per the name of the drill bit, you may already understand that it can effectively create holes on strong materials like glass, ceramic, porcelain and so on. So, it’s a great tool that you can repair and install different items by yourself when you are at home.

One thing you should keep in mind that when you are making a small hole, you can speed up the drill. But, when you are making a larger hole, you should slow down the speed. Also, remember to keep the required material lubricated before you are making a hole.

Whenever you are working on your DIY project or fixing something at home, you just need to wet the required place and then drill. In this way, you can operate the device for quite a long time.

  • The drill bit can be used on any standard electric drill
  • To ensure durability, use water for lubrication on the material
  • The diamond drill bit set includes 12pcs of 4-50mm drill bit set
  • It can easily create a hole in glass, tiles, marble, granite, ceramic or other materials
  • Need size improvement

What are the Things to Consider Before Buying the Best Core Drill Bit?

We have discussed some quality core drill bits in our article for your kind consideration. If you have already surfed the internet, you might have seen there is a variety of core drill bit with unique configurations. Also, it’s easy to get confused to pick the right one among the different types of the diamond core drill bit, concrete core drill bit and masonry core drill bit.

Therefore, you need to be conscious of a few things before choosing the core drill bit you need. Let’s discuss them!

What is the diamond core drill bit?

The diamond core drill bits are used in many types of material. But, remember that there is not a single type of diamond drill bit. And, not all diamond drill bits are the same.

So, if you ask specifically, what is the perfect diamond core drill bit, the answer is the diamond core drill bit with SMART CUT technology.

These core drill bits are of high quality, durable and fast drilling drill bit. Therefore, you can consider the Smart Cut diamond core drill bit to use in multiple types of projects.

What is the best concrete core drill bit?

The concrete core drill bit is specially designed for house and road construction. Where there is a repairing project or new construction, the concrete core drill bit is used for construction based projects.

What is the material of the drill bit?

The drill bits are made of three materials- high-speed steel (HSS), carbide and cobalt. The HSS is used to drill soft materials. Whereas, the carbides are used for harder material and cobalt are used for the hardest materials.

So, when you are purchasing the core drill bit for your project, check the material of the bits. Then, you can easily choose the right drill bit for the material you are going to drill.

What are the design features to look for in the core drill bit?

Well, the difference in the drill bit design matters a lot. When you check on the drill bit, you need to focus on the length, angle, and shape. To find the standard drill bit, it’s wise to find the bits that are made with standard measurement.

For example, the standard angle of the bit is 118 degree and flute design bits are highly used to work at 30-degree angle. So, while you are purchasing your ideal core drill bit, check if the drill bit is following the standardized shape, size, and design or not.

Final Verdict

At the end! These are our picked core drill bits. We hope you have been able to pick the one you have been searching for. You can pick any one of the products mentioned above and get high performance without any worries.

Apart from the products, you can trust our reviews because they are based on advanced research and neutral perspective. If you have any further comment or queries, you can leave them in the comment section. Thanks for taking your time reading the article.

We wish you get the best core drill bit and accomplishment in your projects! 🙂

William Howell


William Howell (DIY Expert)

My professional wood working began at a very young age of thirteen, with eighteen years in furniture manufacturing, followed by seven years as a general contractor of finer homes.

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