Best Core Hex-shank Drill Bits of 2026

Name: Starrett 240mm Hex Adaptor for Core Drills
Brand: Starrett

Jennifer Fraser

Last Updated: 5 Feb 2026

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Core Hex-shank Drill Bits are a type of drill bit designed for drilling holes in various materials such as wood, metal, and plastic. These drill bits have a hexagonal shank that fits securely into a hexagonal chuck, providing a stable and secure grip during use. The bits come in a range of sizes and are made from high-quality materials, ensuring durability and longevity. These drill bits are ideal for both DIY enthusiasts and professionals, providing precision and accuracy with every use.

At a Glance: Our Top Picks

#TOP 1

Starrett 240mm Hex Adaptor for Core Drills

9.8

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#TOP 2

REKCKRUL 10-Pack 1/4 Inch Diamond Drill Bits Set, Diamond Hole Saw - 1/4 Hex Shank Core Drill Bits

9.7

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#TOP 3

Bosch EXPERT HEX-9 MultiConstruction Drill Bit 5.5mm

9.5

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Top 10 Core Hex-shank Drill Bits

#TOP 1

Starrett 240mm Hex Adaptor for Core Drills

Starrett
BMA1240
Black
240 mm

Starrett Hex Adaptor - 240mm Shank Adaptor For Core Drills - BMA1240

The Starrett Hex Adaptor is designed with tough materials, featuring a sturdy steel body that ensures durability and resilience. Its substantial 240 mm shank length allows you to tackle a wide range of drilling applications with ease. You will appreciate the secure connection it provides, enabling a precise link between your drill and core drill bit for smooth performance. Additionally, this adaptor is compatible with both core drills and rotary power drills, making it a versatile choice for various projects.

9.8

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What We Like

Durable steel construction
Long 240 mm shank length
Secure drill connection
Compatible with multiple drills
Versatile for various applications

#TOP 2

REKCKRUL 10-Pack 1/4 Inch Diamond Drill Bits Set, Diamond Hole Saw - 1/4 Hex Shank Core Drill Bits

REKCKRUL
RKR-LJB-10-6mm
Black

REKCKRUL 10-Pack 1/4 Inch Diamond Drill Bits Set, Diamond Hole Saw – 1/4 Hex Shank Core Drill Bits for Ceramic, Tile, Glass, Granite, Marble, Brick & Stone, 6mm

Features

Dry & Wet Drilling Flexibility: Built-In Cooling Lubricant Allows Dry Drilling, While Water Can Be Added For Extended Bit Life. Great For Effortless Cutting Through Ceramic, Porcelain, Masonry, Glass, Marble, Granite, And More
Premium Diamond Grit & Vacuum Brazed Technology: Engineered With Industrial-Grade Diamond Particles And Vacuum Brazing Technology, Our Drill Bits Ensure Maximum Durability And Heat Resistance
Multi-Size Kit For Versatile Use: Includes 10 Pieces - 1/4" X 10 (6mm X 10) To Handle Projects From Small DIY Crafts To Large-Scale Renovations. Clear Size Markings Ensure Easy Identification

9.7

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#TOP 3 Best Impact Hex-shank Drill Bit

Bosch EXPERT HEX-9 MultiConstruction Drill Bit 5.5mm

Bosch
2608900572
Multicolor
Ø 5,5 x 100 mm

Bosch 1x EXPERT HEX-9 MultiConstruction Drill Bit (for Concrete, Soft tiles, Ø 5.50 mm, Professional Accessory Impact Drill/Driver, Rotary Drill/Drivers)

The Bosch EXPERT HEX-9 Drill Bit is designed for precision and versatility. It offers up to five times more accuracy compared to standard Bosch CYL-3 Drill Bits, giving you confidence in your drilling tasks. The hex shank ensures a strong connection, maximising torque transmission in various tool holders. This drill bit excels in drilling through multiple materials, whether you are in impact mode for concrete and stone or using the rotary setting for softer materials like wood and plastic. Experience ease and efficiency with this professional accessory.

9.5

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What We Like

High precision drilling
Strong hex shank connection
Versatile for multiple materials
Impact mode for concrete
Easy to use with various tools

#TOP 4

toolant Impact Hex Head Allen Wrench Drill Bit Set 10pcs

toolant
TA01001001

toolant Impact Hex Head Allen Wrench Drill Bit Set 10pcs (Metric), 1/4" Hex-Shank S2 Steel Hex Bits Set, CNC Machined Tips with Magnetism, 4" Long with Storage Box

Features

10pcs Metric Hex Bits Set-1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 5mm, 6mm, 7mm, 8mm. 1/4” Quick Release Hex-Shank, 4” Long.
Toolant Impact Hex Head Allen Wrench Drill Bits. Torsion Zone To Absorb Torque Peaks To Avoid Breakage. For Impact Driver And Heavy Screw Driving.
Widely Used In Home Repairs, Automobiles And Other Screw Driving Applications. If You Are Not Fully Satisfied For Any Reason, Please Feel Free To Contact Us Via Amazon For 100% Refund Or Replacement. Don't Forget To Follow Us On Amazon By Clicking Our Brand Name At The Top Of Product Page. :)

9.3

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#TOP 5 Best Hex-shank Drill Bit for Tile

Bosch EXPERT HEX-9 MultiConstruction Drill Bit 6mm

Bosch
2608900574
Multicolor
Ø 6 x 100 mm

Bosch 1x EXPERT HEX-9 MultiConstruction Drill Bit (for Concrete, Soft tiles, Ø 6.00 mm, Professional Accessory Impact Drill/Driver, Rotary Drill/Drivers)

The Bosch EXPERT HEX-9 Drill is designed to offer you up to five times more precision than traditional drill bits, helping you achieve accurate results every time. Its Bosch Centering Geometry makes drilling easier by keeping the bit perfectly centred, reducing slips and mistakes. The hex shank ensures a strong connection to your drill, allowing maximum torque transmission for efficient drilling. This versatile bit is ideal for multiple materials, letting you switch between impact mode for concrete and stone, and rotary mode for brick, tiles, metal, wood, and plastic with ease.

9.3

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What We Like

Highly precise drilling
Effective centring geometry
Strong hex shank connection
Multi-material use

#TOP 6

6PCS Hexagonal Shank Core Drill Bits Designed

UTTASU
F60NJA0JR6341S6RBU79C
As Picture Show

6PCS Hexagonal Shank Core Drill Bits Designed for Dry Drilling Holes in Tile Marble Granite Concrete Featuring Brazed Emery and Wax Core Cooling Technology

Features

[INNOVATIVE DRY DRILLING TECHNIQUE] With A Special Wax Core That Eliminates The Need For Water, This Bit Allows You To Work Efficiently Without Messy Cleanup Or Additional Tools Required.
[INCLUSIVE DRILL BIT SET] This Comprehensive Set Contains Six Drill Bits (6mm To 12mm) Tailored For Drilling Into Granite, Marble, And Concrete Surfaces Effectively.
[RELIABLE HEXAGONAL SHANK DESIGN] The Hexagonal Shank Provides A Firm Grip Within Drill Chucks To Enhance Accuracy And Prevent Slippage During Use.

9.2

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#TOP 7

Bosch EXPERT HEX-9 MultiConstruction 5mm Drill Bit

Bosch
2608900571
Multicolor
Ø 5 x 100 mm

Bosch 1x EXPERT HEX-9 MultiConstruction Drill Bit (for Concrete, Soft tiles, Ø 5.00 mm, Professional Accessory Impact Drill/Driver, Rotary Drill/Drivers)

The Bosch EXPERT HEX-9 Drill Bit offers up to five times greater precision than standard Bosch CYL-3 bits, making your drilling tasks more accurate and controlled. Thanks to Bosch's clever Centering Geometry, you can easily start holes without slipping, saving time and effort. Its hex shank design ensures a strong grip and maximum torque when used with three-jaw chucks or ¼" hex tool holders, so you get reliable power transfer. This versatile bit is perfect for drilling into various materials, including concrete, stone, brick, ceramic tiles, metal, wood, and plastic, adapting well to impact or rotary modes depending on the surface.

9.2

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What We Like

Highly precise drilling
Centre starting geometry
Strong hex shank connection
Works on multiple materials
Suitable for impact mode

#TOP 8

Bosch EXPERT HEX-9 MultiConstruction Drill Bit

Bosch
2608900570
Multicolor
Ø 4 x 90 mm

Bosch 1x EXPERT HEX-9 MultiConstruction Drill Bit (for Concrete, Soft tiles, Ø 4.00 mm, Professional Accessory Impact Drill/Driver, Rotary Drill/Drivers)

The Bosch HEX-9 Drill Bit offers exceptional precision, being up to five times more accurate than the Bosch CYL-3 Drill Bit. Its hex shank design ensures a robust connection and optimal torque transmission, making it suitable for use in various chuck types. This drill bit excels in drilling through multiple materials, allowing you to tackle concrete and stone in impact mode, while also accommodating brick, soft ceramic tile, sheet metal, wood, and plastic in rotary mode. This versatility makes it an essential tool for your DIY projects.

9.0

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What We Like

Highly precise drilling
Strong hex shank connection
Versatile for multiple materials
Suitable for impact and rotary use

#TOP 9

20 Pcs Impact Hex Head Allen Wrench Drill Bit Set

AEVXKHI
052699

20 Pcs Impact Hex Head Allen Wrench Drill Bit Set, Metric and SAE S2 Alloy Steel Hex Bit Set with Magnetic Tips, 1/4inch Hex Shank Screw Driver Drill Bit (SAE + Metric)

Features

[S2 Alloy Steel Material] Hexagonal Bit With CNC Machined Drill Tip, S2 Alloy Steel Body, Hardened Core To Increase Bit Strength And Reduce Breakage. The Surface Is Protected Against Rust By Manganese Phosphate. Reinforced Magnetic Impact Bit Allows You To Pick Up Screws Easily
[SAE And Metric] SAE: 5/64 Inch, 3/32 Inch, 7/64 Inch, 1/8 Inch, 9/64 Inch, 5/32 Inch, 3/16 Inch, 7/32 Inch, 1/4 Inch, 5/16 Inch. Metric: 1.5 Mm, 2 Mm, 2.5 Mm, 3 Mm, 3.5 Mm, 4 Mm, 5 Mm, 6 Mm, 7 Mm, 8 Mm. 1/4 Inch Quick Release Hexagonal Shank, Length: 4 Inch
[Multi-Purpose] Impact Hex Head Allen Wrench Drill Bit Set Is Widely Used In Home Repair, Automotive And Other Screwdriving Applications

9.0

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#TOP 10

toolant 1/4" Impact Hex Bits Set 10pcs

toolant
TA01001001
1/4"(10pcs)

toolant 1/4" Impact Hex Bits Set 10pcs,1/4" Hex-Shank Allen Wrench Drill Bit Set, S2 Steel, CNC Machined Tips with Magnetism, 2” Long with Storage Box

Features

1/4"*10pcs, 1/4” Quick Release Hex-Shank, 2” Long. Nice Choice For Replacement Bit.
Toolant Impact Hex Head Allen Wrench Drill Bits. Torsion Zone To Absorb Torque Peaks To Avoid Breakage. For Impact Driver And Heavy Screw Driving.
Widely Used In Home Repairs, Automobiles, And Other Screw Driving Applications. If You Are Not Fully Satisfied For Any Reason, Please Feel Free To Contact Us Via Amazon For 100% Refund Or Replacement. Don't Forget To Follow Us On Amazon By Clicking Our Brand Name At The Top Of Product Page. :)

8.8

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Frequently Asked Questions (FAQs)

1. What are hex shank drill bits for?

A hex shank drill bit will be used in conjunction with a drill press. A hex shank drill bit is a cutting device designed for use with a drill, drill press, or other rotating instrument.

2. Can you use hex shank bits in a drill?

The answer is no. As explained, regular drill bits are not designed to withstand the stress of the torque an impact driver outputs. As a result, if stress-tested, regular drill bits with hex ends placed in impact drivers can easily snap which could also break the impact driver itself.

3. Is hex shank the same as SDS?

Straight shanks are used for keyed or keyless chucks (from 10 to 13 mm). SDS shanks are used for SDS+ or SDS Max chucks. Hex shanks are used for screw guns or electric screwdrivers.

4. What is a core drill bit?

A core drill is a cylindrical drill with a hollow bit that allows you to create a perfectly round hole in the material that you're drilling. Because the bit is hollow, the drilling material gets extracted from the centre.

Editor's Notes

During our core hex-shank drill bit research, we found 39 core hex-shank drill bit products and shortlisted 10 quality products. We collected and analyzed 33,772 customer reviews through our big data system to write the core hex-shank drill bits list. We found that most customers choose core hex-shank drill bits with an average price of £20.00.

The core hex-shank drill bits are available for purchase. We have researched hundreds of brands and picked the top brands of core hex-shank drill bits, including Starrett, REKCKRUL, Bosch, toolant, UTTASU.

Written by

Jennifer Fraser

Jennifer Fraser is a licensed contractor specializing in sales, maintenance, and kitchen, bathroom, and home appliances, tools, and utilities. She owns a store in Leeds where you can get any home and tool appliance. Jenny has a degree in literature, but she combines her knowledge and experience with her degree to publish DIY articles on solving home appliances issues to keep up the family enterprise.