Best Core Hex-shank Drill Bits of 2025

Jennifer Fraser Avatar
Jennifer Fraser
Last Updated: 1 Feb 2025

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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

Starrett 240mm Hex Adaptor for Core Drills Cover #TOP 1
Starrett 240mm Hex Adaptor for Core Drills
ftb score rating icon 9.8
Silverline 783138 Hex Core Drill Arbor 100 mm Cover #TOP 2
Silverline 783138 Hex Core Drill Arbor 100 mm
ftb score rating icon 9.7
TIMCO 88mm Diamond GP Core Bit Cover #TOP 3
TIMCO 88mm Diamond GP Core Bit
ftb score rating icon 9.5

Top 10 Core Hex-shank Drill Bits

#TOP 1

Starrett 240mm Hex Adaptor for Core Drills

BMA1240
240 mm
Starrett 240mm Hex Adaptor for Core Drills Cover
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.

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

Silverline 783138 Hex Core Drill Arbor 100 mm

783138
Others
100 mm
Silverline 783138 Hex Core Drill Arbor 100 mm Cover
Silverline 783138 Hex Core Drill Arbor 100 mm

The Silverline Hex Core Drill Arbor is designed for efficiency and ease of use. It includes an ejector drift key, which helps you quickly remove the taper guide drill, saving you time during your projects. This arbor fits both 12 inch BSP TCT and diamond core drills, making it versatile for various drilling applications. Crafted from hardened steel, it ensures durability and strength, providing you with confidence in your work. Whether you're a professional or a DIY enthusiast, this tool will enhance your drilling experience.

What We Like
Includes ejector drift key
Fits various core drills
Made from hardened steel
Durable and strong
Enhances drilling efficiency
#TOP 3

TIMCO 88mm Diamond GP Core Bit

DCAH88P
Black
88mm
TIMCO 88mm Diamond GP Core Bit Cover
TIMCO Diamond GP Core Bit - 88mm - Black 1 pc

The TIMCO Diamond Core Bit is designed for efficient drilling with its 88mm hex adaptor, allowing you to fit it easily to a 1/2" BSP fitting. The black finish not only adds a sleek look but also enhances durability, ensuring it withstands tough drilling tasks. This core bit is perfect for various applications, providing you with the convenience of quick and clean cuts in different materials. You will find this tool an essential addition to your toolkit for both professional and DIY projects.

What We Like
Durable black finish
Fits standard 1/2" BSP
88mm hex adaptor included
Efficient drilling performance
#TOP 4

Spyder Rapid Core Eject Arbor, 3/8" Hex

600637
Spyder Rapid Core Eject Arbor, 3/8" Hex Cover
Spyder 600637 Rapid Core Eject Arbor Complete, 3/8" Hex 8, High Speed Steel

The Spyder Rapid Arbor is designed for efficient plug removal, offering a remarkable speed that is up to five times faster than traditional methods. This means you can save valuable time on your projects. It is suitable for use on wood, plastic, and metal, making it a versatile tool for various applications. The tooless ejection feature allows for quick and easy removal of the plug, providing convenience during your work. Remember, it is intended for use with rotary drills only, ensuring optimal performance without the need for a hammer function.

What We Like
Fast plug removal
Versatile material compatibility
Tooless plug ejection
Designed for rotary drills
#TOP 5

SHDIATOOL 2PK M14 to 3/8" Hex Adapter

M14-HEX
SHDIATOOL 2PK M14 to 3/8" Hex Adapter Cover
SHDIATOOL 2PK Adapters M14 Male Thread to 3/8" Hexagon Shank Connection Converter for Drill Core Bit Grinding Disc

The SHDIATOOL M14 Hex Adapter is a versatile tool designed for connecting M14 male thread drill core bits to a 3/8" hexagon shank. With a total length of 53MM and a shank length of 28MM, this adapter is suitable for both hand drills and electric drills, allowing you to use your core bits with ease. Made from good quality steel and featuring surface nickel plating, it ensures durability and longevity, giving you peace of mind during your projects.

What We Like
Durable steel construction
Compatible with hand and electric drills
Easy connection for core bits
Long-lasting surface finish
#TOP 6

GRENPRO 22-Piece Allen Wrench Drill Bit Set

GRENPRO
071044
GRENPRO 22-Piece Allen Wrench Drill Bit Set Cover
GRENPRO Allen Wrench Drill Bit Set 22pcs Hex Bit Set,Impact Driver Bit Set,Screwdriver Bit Set,Allen Wrenches Sets,Allen Socket Set,2" Long Metric&SAE 1/4" Hex Shank Magnetic Allen Key Drill Bits Sets

The GRENPRO Allen Wrench Set includes 22 pieces of high-quality hex head drill bits designed for various tasks. With both metric and SAE sizes, you can easily find the right fit for your screws. The torsion zone feature absorbs torque peaks, helping to prevent breakage during heavy use. Additionally, the strong magnetic tips ensure accurate screw locking, making it easier for you to pick up screws without frustration. Crafted from durable S2 alloy steel, these bits resist rust and enhance longevity, providing you with reliable performance for years to come.

What We Like
Wide range of sizes
Durable and rust-resistant
Strong magnetic tips
Prevents breakage during use
#TOP 7

AIMLENTOOL 17pcs Self-Centering Drill Bit Set

AIMLENTOOL
VIX-17PC
AIMLENTOOL 17pcs Self-Centering Drill Bit Set Cover
AIMLENTOOL 17pcs VIX Bits Self Centering Drill Bit Set, 1/4" Hex Shank Self Centering Hinge Tapper Core Drill Bit for Woodworking Window Door Hinge with 1 Hex Key & 8 Drill Bits 5/64-1/4"

The AIMLENTOOL VIX Bit Set is a high-quality 17-piece self-centering drill bit collection designed for woodworking and hinge applications. Made from durable high-speed steel, these bits offer excellent drilling performance and are rust-proof, ensuring longevity. With eight different sizes available, you can easily find the right bit for your project needs. The automatic centering feature enhances accuracy, making your drilling tasks quicker and more efficient, while the double-hole design prevents sawdust blockages, keeping your work area clean.

What We Like
High-quality, durable materials
Automatic centering for accuracy
Wide range of sizes
Double-hole design prevents blockages

STONE REEF 68 mm SDS Plus Drill Bit for Concrete

Bohrkrone 68mm.
STONE REEF 68 mm SDS Plus Drill Bit for Concrete Cover
STONE REEF SDS Plus Drill Bit, 68 mm, Socket Drill for Concrete and Masonry, Can Drill for Sockets, Hole Drill, Core Drill, Flush-Mounted Sockets, High Performance Crown Drill, Socket Countersink for

The STONE REEF Drill Bit is designed for precision and cleanliness, allowing you to make accurate cuts in concrete and masonry. This is particularly beneficial for electricians and construction workers needing to install sockets and cavity wall sockets. Made from high-quality materials, it provides impressive hardness and efficiency, making it perfect for drilling into tough surfaces. Its SDS Plus extraction ensures compatibility with all SDS Plus hammer drills, enabling quick changes and efficient work on your projects.

What We Like
Precise and clean cuts
High-quality, durable material
Compatible with SDS Plus drills
Versatile for various surfaces
#TOP 9

BRETREEAD 20PCS Hex Drill Bit Set

bretreead
BR01T8007
SAE&Metric(20 pcs)
BRETREEAD 20PCS Hex Drill Bit Set Cover
BRETREEAD Impact Allen Wrench Drill Bit Set 4’’ Long Drill Bit Set 20PCS(Metric & SAE), 1/4’’ Hex Shank S2 Steel Hex Bit Set & CNC Machined Tips, Allen Key Drill Bit Set with Magnetism and Storage Box

The BRETREEAD Hex Bit Set is a versatile collection of 20 hex drill bits, featuring both metric and SAE sizes. Made from S2 alloy steel, these bits are designed for strength and durability, ensuring they withstand tough tasks without breaking. The torsion zone design absorbs torque peaks, providing you with peace of mind during use. With a 4-inch length, this set allows for easier access to difficult angles, improving your efficiency in various projects, from home repairs to automotive work.

What We Like
Includes both metric and SAE bits
Durable S2 alloy steel construction
Torsion zone design prevents breakage
Extended length for accessibility
Suitable for various tasks
#TOP 10

Bosch Professional Power Change Plus Adapter

2608594258
colour
7,15 x 105 mm
Bosch Professional Power Change Plus Adapter Cover
Bosch Professional 2608594258 Power Change Plus Adapter (Socket 3/8 Inch Hexagonal Shank, Including Drill Bit 7.15 x 105 mm, Hole Saw Accessories)

The Bosch Power Change Adapter offers an easy solution for quickly changing hole saws with just one click. Its robust design and improved materials provide a stable and precise system, ensuring that you can work efficiently. The enhanced hexagonal shaft increases stability, making it easier for you to tackle various tasks. Additionally, the fast core removal feature allows you to unlock, tilt, and push out cores swiftly, saving you valuable time during your projects.

What We Like
Quick hole saw changes
Stable and precise design
Enhanced hexagonal shaft
Fast core removal
Compatible with various drills
Buying Guide Image

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 16 core hex-shank drill bit products and shortlisted 10 quality products. We collected and analyzed 6,301 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 £14.85.

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, Silverline, TIMCO, Spyder, SHDIATOOL.

Written by
Jennifer Fraser Avatar

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.