Best Steel Installer Bits of 2025

Jennifer Fraser Avatar
Jennifer Fraser
Last Updated: 1 Feb 2025

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Steel installer bits are essential tools for anyone who needs to drill holes in metal surfaces. These bits are made of high-speed steel, which is strong and durable enough to withstand the rigours of drilling through tough materials like steel and aluminium. They come in a variety of sizes and shapes, including twist bits, step bits, and hole saws, making them versatile enough to handle any drilling task. Whether you're a professional tradesperson or a DIY enthusiast, steel installer bits are a must-have for your toolkit.

At a Glance: Our Top Picks

Eagle Tool US Flex Shank Installer Bit Cover #TOP 1
Eagle Tool US Flex Shank Installer Bit
ftb score rating icon 9.8
Eagle Tool US EA10018 Installer Drill Bit Cover #TOP 2
Eagle Tool US EA10018 Installer Drill Bit
ftb score rating icon 9.7
Irwin Installer Drill Bit for Wood Cover #TOP 3
Irwin Installer Drill Bit for Wood
ftb score rating icon 9.5

Top 10 Steel Installer Bits

#TOP 1

Eagle Tool US Flex Shank Installer Bit

ESP56236
Black
9/16 in.
Eagle Tool US Flex Shank Installer Bit Cover
Eagle Tool US ESP56236 Flex Shank Installer Drill Bit, Screw Point, 9/16-Inch by 36-Inch, Made in The USA

The Eagle Tool US Installer Bit boasts a self-feeding screw point that ensures efficient drilling, allowing you to work with ease. Its flexible spring steel shank accommodates wire fishing, making it ideal for various installations. The three flat, non-slip grip at the chuck end enhances your control while drilling, ensuring precision in every task. Additionally, you can easily adapt it to a Quick Change chuck, adding versatility to your toolkit. This combination of features makes this drill bit a practical choice for any installer.

What We Like
Self-feeding screw point
Flexible spring steel shank
Non-slip grip for control
Quick Change compatibility
Made in the USA
#TOP 2

Eagle Tool US EA10018 Installer Drill Bit

EA10018
Black
1 in
Eagle Tool US EA10018 Installer Drill Bit Cover
Eagle Tool US EA10018 Installer Drill Bit, Auger Style, 1-Inch by 18-Inch, Made in The USA

The Eagle Tool Installer Bit features an aggressive, self-feeding auger point, making it easier for you to drill into tough materials. The heat-treated spring steel shank ensures durability and reliability during use, while wire fishing accommodation holes in both the head and shank provide added convenience for wiring tasks. With no flexibility in the 18-inch shank, you can expect consistent drilling performance every time, allowing for precise installation work.

What We Like
Self-feeding auger point
Durable heat-treated steel
Wire fishing holes included
Rigid 18-inch shank
#TOP 3

Irwin Installer Drill Bit for Wood

1890708
Multicolor
One Size
Irwin Installer Drill Bit for Wood Cover
Irwin Tools IRWIN Installer Drill Bit for Wood, Straight Shank, 18-Inch x 5/16-Inch (1890708)

The Irwin Installer Drill Bit offers a sharp 82˚ point, ensuring fast and smooth drilling in wood. This feature allows you to work quickly and efficiently, saving you time on your projects. Additionally, the hole in the flute makes it easy for you to pull wires through walls, ceilings, and floors, which is incredibly useful for installations. The 3-flatted shank prevents slipping in the drill chuck, providing you with stability and control during use. Made from premium high carbon steel, this drill bit ensures extended drilling life, making it a reliable choice for your woodworking needs.

What We Like
Fast, smooth drilling
Convenient wire pulling
Prevents slipping
Durable high carbon steel
#TOP 4

Hilitand 10 Pcs Drywall Screwdriver Bits Set

Hilitandzi27hgv1m4
Variety Pack
Hilitand 10 Pcs Drywall Screwdriver Bits Set Cover
Hilitand 10 Pcs/Set Drywall Cutter Bits Screwdriver Bits PH2 Anti-Slip Hex Shank Magnetic 65mm with S2 Chrome Steel for for Plasterboard Drywall Screw Screw

The Hilitand Drywall Bits offer a host of features that enhance your drywall installation experience. The magnetic circle ensures screws are absorbed tightly, minimising wear and prolonging their lifespan. With a depth stop design, you can prevent screws from penetrating too deeply, protecting your plasterboard from damage. These bits are specifically designed for PH2 screwdriver compatibility, making them ideal for drywall screws. Made from chrome vanadium steel, they promise high durability and excellent performance, ensuring they stand the test of time.

What We Like
Magnetic circle for secure screws
Depth stop to prevent damage
Durable chrome vanadium steel
Compatible with various drills
Long-lasting performance
#TOP 5

EMILYPRO Flex Shank Installer Drill Bit Guide Kit

HT-60
7.5 mm
EMILYPRO Flex Shank Installer Drill Bit Guide Kit Cover
EMILYPRO Flex Shank Installer Drill Bit Guide Tools/Cable Bit Bumper Balls for 1/4" Shank/in-Wall Drill Guide Kit 1-3/4" & 2-5/16" - S/4+Tool

The EMILYPRO Installer Drill Guide is specially designed to help you keep your flex shank drill bit straight while you work. It is particularly useful in narrow or hard-to-reach spaces within walls. You simply insert the flex shank bits into the PVC bumper balls, fasten the stoppers, and you are ready to go. This kit includes two different sizes of PVC balls, allowing you to choose the right one for your specific task, ensuring versatility and convenience for various drilling conditions.

What We Like
Special design for stability
Suitable for tight spaces
Includes multiple sizes
Durable materials used
#TOP 6

Eagle Tool US EM25024 Installer Drill Bit

EM25024
Black
1/4 in.
Eagle Tool US EM25024 Installer Drill Bit Cover
Eagle Tool US EM25024 Installer Drill Bit, Carbide Tip for Masonry Applications, 1/4-Inch by 24-Inch, Made in The USA

The Eagle Tool Installer Bit features a carbide tip, making it ideal for masonry applications. This durable tip ensures effective drilling through tough materials, giving you reliable performance. The flexible spring steel shank includes wire fishing accommodation holes, allowing you to easily manage wires during installation tasks. Additionally, the three flat non-slip grip on the chuck end provides you with enhanced control, making it safer and easier to use. You can also add a Quick Switch Hex for added versatility with quick change chucks.

What We Like
Durable carbide tip
Flexible spring steel shank
Non-slip grip for control
Wire fishing accommodation
Made in the USA
#TOP 7

EGO 8-Inch Earth Auger Bit for Fencing

EGO
AET0800
black
EGO 8-Inch Earth Auger Bit for Fencing Cover
EGO AET0800 8-Inch Earth Auger Bit with Heavy-Duty Steel Construction, Compatible with Power+ Earth Auger (EG0800/EG0803) and Ice Auger (IG0800/IG0804)

The EGO Earth Auger Bit is designed for use with POWER+ Earth Augers, making it a versatile tool for your outdoor projects. Its 8-inch diameter is perfect for installing standard fencing and deck posts, ensuring you can get the job done efficiently. The 7/8-inch connection allows for quick and easy bit changes, saving you valuable time. Additionally, its heavy-duty steel construction and anti-corrosion powder coat finish provide durability, so you can rely on this tool for long-lasting performance.

What We Like
Easy bit changes
Durable steel construction
Corrosion-resistant finish
Ideal for fencing installation
Compatible with multiple augers
#TOP 8

Eagle Tool US 9/16-Inch Flex Shank Drill Bit

EC56236
Black
9/16 in.
Eagle Tool US 9/16-Inch Flex Shank Drill Bit Cover
Eagle Tool US EC56236 Flex Shank Installer Drill Bit, Serrated Split Point, 9/16-Inch by 36-Inch, Made in The USA

The Eagle Tool US Drill Bit features a split point design that helps you start drilling more easily, while its serrated body allows for aggressive cutting through materials. The heat-treated spring steel shank ensures durability, providing confidence in its strength during use. Additionally, the drill bit has wire fishing accommodation holes, making it convenient for accessing wiring. With a three-flat non-slip grip on the chuck end, you can enjoy better control and stability while drilling.

What We Like
Better starting with split point
Serrated body for aggressive cutting
Durable heat-treated steel shank
Wire fishing holes for convenience
Non-slip grip for better control
#TOP 9

ENT 09190 Extra Long Auger Bit Set

ENT 09190 Extra Long Auger Bit Set Cover
ENT 09190 6-Piece Auger bit Set, Ø 10-12-14-16-18-20mm, Total Length 460mm, Made of Tool Steel, Extra Long bits

The ENT 09190 Auger Bits set is an essential tool for tradesmen and DIY enthusiasts. With a total length of 460mm, these bits allow you to easily drill holes in thick beams and rafters, making it perfect for projects that require extra long screws. Made from hardened tool steel, the bits feature an anti-stick coating for improved chip transport, helping you work efficiently. The threaded centre point reduces the force needed when drilling, providing a smoother experience. Each bit fits securely in your hand drill due to the hexagonal shaft, ensuring precision and ease while working.

What We Like
Extra long 460mm length
Suitable for hardwood and softwood
Hardened tool steel for durability
Hexagonal shaft for secure grip
Efficient chip transport
#TOP 10

IRWIN 36-Inch Straight Shank Installer Drill Bit

1890721
Multicolor
One Size
IRWIN 36-Inch Straight Shank Installer Drill Bit Cover
Irwin Tools IRWIN 1890721 Straight Shank Installer Drill Bit for Wood, 36-Inch by 3/8-Inch

The IRWIN Installer Drill Bit features an 82˚ point, allowing you to drill quickly and smoothly through wood. The hole in the flute is especially handy for pulling wires through walls, ceilings, and floors, making your installations easier. Its 3-flatted shank design prevents slipping in the drill chuck, ensuring a secure grip as you work. Constructed from premium high carbon steel, this drill bit offers extended durability, so you can rely on it for your woodworking projects.

What We Like
Fast, smooth drilling
Wire pulling feature
Prevents drill slippage
Durable high carbon steel
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What are the best bits to drill through steel?

Clearly, the best drill bits for hardened metal or steel come with a cobalt blend. These cobalt drill bits use an alloy including 5%–8% cobalt. This cobalt makes up part of the steel blend, so the hardness of the bit doesn't wear off with a coating (like titanium bits). It runs throughout the entire bit.

2. What kind of bit do you use for metal?

In general, it's a good idea to drill through metal using as slow a speed as possible using a drill bit for metal. Hard metals like steel and larger drill bits require even slower speeds. With a small twist bit (1/16 in. to 3/16 in.), you can drill through most metals at 3,000 rpm.

3. What is the hardest drill bit for metal?

Cobalt (HSCO) is considered an upgrade from HSS because it includes 5-8% Cobalt blended into the base material. This is a great option for drilling into harder steel as well as stainless steel grades. Carbide (Carb) is the hardest and most brittle of the drill bit materials.

4. Do diamond bits work on steel?

While diamond drill bits are designed for drilling in extremely hard materials, Electroplated Diamond Drill Bits are NOT designed for use on metal, concrete or masonry materials. For drilling in concrete, masonry, and metals such as iron, cast iron and steel, a carbide tipped drill bit must be used.

Editor's Notes

During our steel installer bit research, we found 23 steel installer bit products and shortlisted 10 quality products. We collected and analyzed 17,813 customer reviews through our big data system to write the steel installer bits list. We found that most customers choose steel installer bits with an average price of £30.03.

The steel installer bits are available for purchase. We have researched hundreds of brands and picked the top brands of steel installer bits, including Eagle Tool US, IRWIN, Hilitand, QZATTCAEN, EGO.

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.