5 Best Drill Bit for Hard Stone – A Complete Buying Guide

When drilling stone, it is important to avoid chipping or cracks in the surface. You also want your drill bits to stay competent for a longer period of time. But what are the right drill bits for your stone or rock drilling projects?

The top quality masonry bits work well on stone. Among many types, diamond drill bits are generally ideal picks for drilling hard stone.

As you’re looking for the best drill bit for hard stone, this guide will definitely help you. We have reviewed only those drill bits that have exclusive features to drill various stones. Our selected drill bits will make your drilling job quite effortless.

Also, we have added relevant information to ensure your buying decision easy and effective. Let’s get started to know what you should specifically pick to drill hard stone.

You Can Pick Your Drill Bit from the Following List of Drill Bits for Hard Stone.

Also Read: Top Drill Bits for Steel

5 Best Drill Bits for Hard Stone Reviews

There are unique and sturdy drill bits available for drilling hard stones. We have listed the 5 best stone drilling bits from which you can purchase the perfect one.

1. Best Drill Bit for Natural Stone – WORKPRO 8-Piece SDS-plus Drill Bit Set

With the carbide tip, the WorkPro8-piece drill bits make sure to give you a perfect hole. The drill bits are different from one another in design and size.

The drill is constructed with sturdy and durable cemented carbide, which makes them more stable, more durable, and sharp. They come with a deep and wide U-shaped Flute design that removes the debris fast for smooth and efficient drilling.

The SDS Plus Shank included in the drill bits fits most rotary hammer drills. The shanks have two types of grooves. The small grooves are for fixing the bit in the chuck.

The larger grooves help in preventing the bits from falling out and enhance the hammering energy and drilling torque. You can make holes in stone, concrete, brick, and masonry fast by using these drill bits.

The set includes different sizes of drill bits to fit in different projects. This drill bit for concrete wall also comes with a storage case.

What we liked:

• Includes 8-pieces of sturdy drill bits.
• Unique design for quick drilling.
• Fits in most SDS Plus hammer drills.
• Affordable and durable.

What we didn’t like:

• The 3/8’’ drill bit is a bit inefficient.

2. Best Masonry Drill Bits – Sabre Tools 8-Piece SDS Plus Drill Bit Set

Confidently make holes on hard stones, concrete, brick, and other masonry applications with the Sabre SDS Plus Drill Bits. They are made with a sturdy steel body and high-quality carbide centric tip that extends the workable life and makes them long-lasting.

The carbide centric conical tip helps in providing smooth and accurate holes. The hammer drill bits come with 2-flute and a 2-cutter head design that ensures fast cut speed.

The optimized design of the bits helps the material to exit the hole quickly and allows the bit to remain cool while drilling. These high-quality drill bits are compatible with Hitachi, Dewalt, Makita, Hilti, and other SDS Plus-sized rotary drill bits.

This set includes ¾’’, ¼’’, and 5/6’’ drill bits, which are 4-inch long, and also 6-inch long 5/16’’, 3/8’’, 5/8’’, ½’’, and ¾’’ drill bits. You will get a full replacement if you are not satisfied with the product and return it to the manufacturer.

What we liked:

• Durable and sturdy construction.
• Optimized design allows smooth operation.
• Compatible with all SDS plus-sized rotary hammer drills.
• Quickly drills accurate holes.

What we didn’t like:

• Doesn’t come with a storage case.

3. Best Drill Bit for Rock – YaeTek 20pcs SDS Plus Rotary Hammer Drill Bits

With the YaeTek SDS drill bits, you can make clean holes on not only hard rock, but also on concrete, bricks, and other materials. The bits are made up of 40Cr carbon steel, which makes them tough and durable.

They come in a common design that assists in enhancing the drill and helps in completing the task smoothly. This set includes 20mm, 18mm, 16mm, 14mm, 12mm, 10mm, 8mm, 6mm, and 5mm drill bits, helpful for making different sized holes.

Since the drill bits have a common design, they are ideal for Makita, Bosch, Hilti, Dewalt, and other SDS drills. The drill bits stay in place while in use and they can make deep holes.

To store the drill bits, it comes with a case where the bits are stored safely. This drill bit set is a bit expensive than the other bit set.

What we liked:

• Made of durable materials.
• Features a common design that fits almost every SDS plus drills.
• Can be used on various hard materials.
• Makes clean and deep holes.

What we didn’t like:

• Expensive.

4. Best Stone Drilling Bits – SHDIATOOL Diamond Core Drill Bits

SHDIATOOL is known for providing high-quality and unique products to professionals. It’s35mm diamond core drill bits are laser welded diamond dry drilling core bits, made up of artificial diamond and steel body.

When working dry, the laser-welded technology avoids segments off. The strong steel body and high-quality diamond improve the work efficiency and extend the drilling life.

With this drill bit, you can do both dry and wet drilling. Using it wet will prolong the segment’s life. You can achieve aggressive drilling speed and smooth cutting thanks to the included turbo segments.

This stone drill bitcomes with vacuum brazed side protection that delivers clean-cut and steel core protection both inside and outside.

It is designed for drilling marble, concrete, hard granite, brick, engineering stone, and more. This drill bit easily operates on angle grinder. The cutting angle string of this drill bit is 30-degrees.

What we liked:

• Includes both dry and wet drilling systems.
• Offers clean-cut and steel core protection.
• Ideal for drilling faucet mounting holes and hard granite
• Operate on Angle grinder.

What we didn’t like:

• Not a durable option.

5. Best Diamond Drill Bits for Stone – SHDIATOOL 6PCS Diamond Core Drill Bits Set

If you are looking for high-quality diamond drill bits for stone, then go for SHDIATOOL 6pcs diamond core drill bits set. The set includes 6mm, 8mm, 10mm, 25mm, 35mm, and 51mm dry diamond core drill bits.

The 6-16mm drilling bits comes with 35mm max working depth, 10mm height, and 62mm total length. While the 19-152mm drilling bits have 50mm cutting depth, 15mm height, and 75mm total length.

Dense cooling wax is filled inside of the drill bit for cooling the diamond bits. Constructed with high-strength steel and high-quality diamond grain, the diamond drill bits are tough and durable.

These drill bits not only offer longer work life but also ensures fast and smooth drilling. You can very conveniently drill holes in dry or wet conditions with this drill bit set.

The recommended machine that should be used is an angle grinder. It is recommended not to use them with hammer mode, only to fit them on corded drills.

What we liked:

• Made with high-quality steel and diamond grain.
• Offers a better quality finish.
• Makes drilling quick and smooth.
• Can be used on dry/ wet condition.

What we didn’t like:

• Doesn’t work with hammer mode.

How to Choose the Best Drill Bit for Natural Stone and Rock

You cannot buy any stone drilling bit randomly, you have to first decide what kind of drill bits you want to purchase. This will help in getting the right drill bit for use. Let us look at the factors you should consider.

Construction Material: Before purchasing a set of drill bits, you have to first check the material used to construct the bits as this will decide the durability and functionality of the drill bits.

For drilling hard materials, you need to choose drill bits made up of Carbide or hardened steel as they can withstand high temperatures and resists heat. Carbide bits are best for heavy production and professional work.

Type of Drill Bits: There are different types of drill bits and they come in a different design.We will talk about SDS and diamond core drill bits here. SDS stands for Slotted drive system that can be inserted into the chuck to create a hammer drill.

While diamond drill bits are used to make a precise core hole on hard material. These are the best drill bits for drilling into hard materials. You can choose one according to your requirement.

Size of the Drill Bit: Sizes of the drill bits is an essential factor to consider. If you are purchasing a set having different sized drill bits, then make sure to check the size of all the drill bits beforehand.

The hole you want to make depends on the size of the drill bit. The size of the drill bits can range from 1/32-inch to 3/4-inch, the higher the size range, the better it is. So, always go for a drill bit set that comes with different sized drill bits.

Drill Bit Number: There are drill bit set that comes with multiple drill bits. These sets are best for multi-purpose use as they can be used to make holes of different sizes. Some drill bit set comes with 6 pieces of bits, 10 pieces, 12 pieces, or even 20 pieces of bits. Choose the set that comes with more drill bits.

Warranty: Most of the drill bits are not backed up by a warranty. But some of the brands offer a replacement or 1-year warranty. So, try to purchase drill bits that come with a warranty so that you can use them for a long time.

Accessories: If the drill bits come with a storage case, then it will be quite helpful in carrying them anywhere. You can store the drill bits in the case and can keep them safe. Make sure the drill bits you are choosing has a durable case included.

Best Drill Bit for Hard Stone: Frequently Asked Questions (FAQs)

1. How do you drill through hard rock?

First, start by drilling slowly on the hard stone by using little pressure. Then apply more downward pressure to make a hole in the surface of the rock. Keep the drill bit straight, increase the speed, apply more pressure and drill into the rock until you reach the desired depth.

2. Will a masonry bit drill through rock?

Yes, you can use a masonry drill bit to drill through rock, but it has to be sturdy and well-built. You have to use it with a suitable rotary hammer drill to penetrate a rock.

3. What is the best drill bit for granite?

Granite is a tough rock, so to drill it, you are recommended to use a diamond core or a carbide-tipped drill bit. Diamond core drill bits will provide precise results.

Final Thoughts

Drilling into hard stones is not easy, but if you use a sturdy, durable, and efficient drill bit, then it will become easier in drilling them. Make sure the drill bit you choose generates less heat and can be used for a long time like the WORKPRO 8-Piece SDS-plus Drill Bit Set.

This set of drill bits is stable, durable, and drills holes fast. The 8 different sized bits can be used for various applications. No matter what drill bit set you select from this list, it will be the best drill bit set for hard stone.