Best Step Bits for Aluminium of 2026

Name: LEKOMESH Cobalt Step Drill Bit Set
Brand: LEKOMESH

Jennifer Fraser

Last Updated: 5 Feb 2026

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Step bits for aluminium are specially designed drill bits that are ideal for drilling holes in thin sheets of aluminium. These bits have a unique stepped shape that allows them to create holes of different sizes with a single tool, making them a versatile and cost-effective option for DIY enthusiasts and professionals alike. They are made from high-quality materials that ensure long-lasting performance, and their precision-ground tips ensure clean and accurate holes every time. Whether you need to drill holes in aluminium for a hobby project or a professional application, step bits for aluminium are an excellent choice that is sure to get the job done.

At a Glance: Our Top Picks

#TOP 1

LEKOMESH Cobalt Step Drill Bit Set

9.9

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LEKOMESH Cobalt Step Drill Bit Set

#TOP1

9.9

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#TOP 2

Step Drill Bit for Metal, M35 Cobalt Drill Bits Multiple Hole Stepped Drill Bit for Hard Metal, Stainless, Steel

9.8

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Step Drill Bit for Metal, M35 Cobalt Drill Bits Multiple Hole Stepped Drill Bit for Hard Metal, Stainless, Steel

#TOP2

9.8

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#TOP 3

DOVAMAN 5PCS Step Drill Bit Set with 1/4" Hex Shank, 47 Sizes HSS Titanium-Coated Bits with Center Punch & Aluminium Case

9.6

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DOVAMAN 5PCS Step Drill Bit Set with 1/4" Hex Shank, 47 Sizes HSS Titanium-Coated Bits with Center Punch & Aluminium Case

#TOP3

9.6

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Top 10 Step Bits for Aluminium

#TOP 1

LEKOMESH Cobalt Step Drill Bit Set

LEKOMESH

LE2-OH-422402

4-22mm

LEKOMESH Cobalt Step Drill Bit - 4-22mm Four Spiral Flute Step Drill Bit M35 with Impact Ready Unibit for Stainless Steel Metal Aluminium Copper Wood Plastic

9.9

FTB Score

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The LEKOMESH Step Drill Bit is designed for precision and versatility. With a diameter range of 4-22mm, it provides ten different sizes to meet your various drilling needs. The 118° split point enhances accuracy, ensuring that you can drill through materials like stainless steel, aluminium, and wood with ease. Its industrial coating offers protection against thermal, abrasion, and corrosion, prolonging the bit's lifespan. For optimal performance, using cutting oil or water cooling is recommended, allowing you to enjoy an efficient drilling experience.

What We Like

Multiple size options available

Improved drilling accuracy

Durable industrial coating

Suitable for various materials

Recommended for cooling use

#TOP 2

Step Drill Bit for Metal, M35 Cobalt Drill Bits Multiple Hole Stepped Drill Bit for Hard Metal, Stainless, Steel

Techchii

XLUK-00042

Step Drill Bit for Metal, M35 Cobalt Drill Bits Multiple Hole Stepped Drill Bit (3-13mm) for Hard Metal, Stainless, Steel, Aluminium, Wood, 6.35mm Hex Shank

9.8

FTB Score

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Features

[Meet Various Drilling Needs] As A Top-Grade Cobalt Step Drill Bits, It Is Able To Drill Or Ream Different Holes On One Drill Tip With Excellent Speed And Precision. Whether It Is A Home DIY Project Or Professional Use, It Can Meet All Needs

[M35 Cobalt-Based Step Drill] This Step Drill Bit For Metal Is Made Of High-Speed Steel With AlTiN Coated On The Surface. After Proper Heat Treatment, M35 Cobalt-Based High-Speed Steel Has Excellent Hardness And Wear Resistance, And Its Hardness Is As High As 89HRC

[Precautions] To Maintain Your Step Drill Bit In Top - Notch Condition, Follow These Tips: When Using It Continuously, Add Cutting Oil Or Spray Water To Cool. Be Aware That Due To The Larger Cutting Angle, The Start - Up Speed Will Be Slower. Additionally, Consider Using A Step Drill Bit Depth Stop Collar Set For More Accurate Drilling Depths

[118° X-Opening And 1/4" Hexagonal Shank Design] This Stepped Drill Bit Features A Spiral Flute Design To Ensure Smooth, Clean Drilling And Efficient Chip Evacuation. The 118° X-Opening Design Allows For Precise Drilling Without The Need For Multiple Drill Bits. The 1/4" (6.35mm) Hexagonal Shank Is Compatible With A Variety Of Drilling Tools

[11 Step Sizes] This Spiral Flute Step Drill Has 11 Different Step Sizes: 3 - 13mm (including 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm And 13mm), Which Can Achieve Seamless And Efficient Drilling On Workpieces Of Various Thicknesses

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#TOP 3

DOVAMAN 5PCS Step Drill Bit Set with 1/4" Hex Shank, 47 Sizes HSS Titanium-Coated Bits with Center Punch & Aluminium Case

DOVAMAN

STD06A-Imperial

Imperial

DOVAMAN 5PCS Step Drill Bit Set with 1/4" Hex Shank, 47 Sizes (from 3/16''to 1-3/8'') HSS Titanium-Coated Bits with Center Punch & Aluminium Case, for Metal, Wood, Plastic – STD06A

9.6

FTB Score

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Features

Premium HSS Material: Crafted From High-Speed Steel (HSS) And Coated With Durable Titanium, These Bits Offer Superior Hardness, Reduced Wear, And Extended Cutting Life. The 118° X-Shaped Split Point Enhances Precision, Preventing Walking And Improving Start Speed.

Wide Size Range: Drill Effortlessly Across 47 Different Hole Sizes, From 3/16'' To 1-3/8'', Using Just 5 Bits. Each Bit Includes 5 To 12 Marked Steps, Allowing Fast Switching Without Changing Tools. Perfect For DIYers, Electricians.

Secure & Universal Fit: All Bits Feature A Standard 1/4" Hex Shank For A Tight Grip And Quick Bit Changes. Fully Compatible With Most Cordless Drills, Impact Drivers, And Bench Drills – Ideal For Sheet Metal, Aluminum, Insulation Board, And More.

Quick-Cut Dual Blade: Dual-Fluted Spiral Design Ensures Smooth And Clean Drilling By Quickly Clearing Chips And Reducing Friction. Achieve Clean, Burr-Free Holes In Metal, Wood, Or Plastic With Minimal Effort And Consistent Results.

Complete Kit: Includes An Automatic Center Punch For Accurate Starting And An Aluminium Case With A Clear Size Index For Neat Storage And Easy Access. Keeps Your Tools Organized And Ready For Any Job.

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#TOP 4 Best HSS Step Bit

YOKOCUT HSS Titanium Step Drill Bit Set

YOKOCUT

6939025604846

4-22mm

YOKOCUT HSS Titanium Step Drill Bit Set Cover

Step Drill Bit HSS Titanium Step Drill Bit For Metal Multiple Hole Drilling Cone Drill Bit Stepped Up Bits For DIY Lovers (4-22MM Step Bit)

9.5

FTB Score

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The YOKOCUT Step Drill Bit is crafted from 100% genuine HSS 4241, ensuring high durability and performance. It is perfect for drilling holes in various materials, including iron, copper, aluminium, wood, and PVC sheets. Its titanium coating enhances toughness, making it more capable for your DIY projects. The two-flute design allows for smoother cutting, reducing the effort needed during use. Additionally, the high step design prevents accidental drilling of larger holes, providing you with greater control and precision.

What We Like

Durable HSS titanium construction

Smooth cutting with two-flute design

Ideal for various materials

Prevents accidental oversizing

#TOP 5

Premium 3-Piece M35 Step Drill Bit Set One-piece design,Split-design High-Speed Spiral Groove Design for Sheet Metal

XZH

UK-JTZ-3PCS

Premium 3-Piece M35 Step Drill Bit Set One-piece design,Split-design High-Speed Spiral Groove Design for Sheet Metal Cover

Premium 3-Piece M35 Step Drill Bit Set One-piece design(3-13mm),Split-design(6-20mm,5-22mm) High-Speed Spiral Groove Design for Sheet Metal, Aluminium, Wood &Plastic Ideal for DIY Enthusiasts 

9.3

FTB Score

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Features

High Quality: M35 Step Bits Are Made Of Classic High-Speed Steel Materials.Provide Good Heat,wear And Chip Resistance,easy To Drill And Precise Holes.The Step Drill Bits Are Perfect For You To DIY.

"Modular Drill Bit Kit-Versatile & Cost-Effective：This Modular Kit Features A Split-Design (6-20mm / 5-22mm) That Covers A Wide Range Of Sizes. The Design Tightens Progressively During Operation, Delivering Enhanced Strength And Drilling Efficiency.For Reliable Field Use, It Also Includes A Solid-Design 3-13mm Drill Bit — Sturdy And Ready For Everyday Tasks."

Wide Application:The Step Drill Bits Can Process Different Diameter Holes (Iron Plate, Copper Plate, Aluminum Plate,Wood, PVC Sheet, Insulatio Boards). Not Suitable For Hard And Brittle Materials Such As Glass, Tile Floors, Walls Etc.Best Choice For DIY Projects,furniture Making Or Metalworking Applications.

KIND TIPS - To Prevent Overheating And Potential Damage To The Drill Bits, Always Use Cutting Oil Or Spraying Water During Operation. Proper Cooling Extends The Life And Efficiency Of The Bits.

For Smooth, Precise Drilling & Easy Chip Removal：Featuring A Spiral Flute Design For Smooth, Clean Drilling And Improved Chip Clearance, These Step Drill Bits Allow You To Achieve Precise Holes With Ease—reducing The Need For Multiple Bits. Engineered To Drill Accurate, Consistently Sized Holes In Various Diameters, They Ensure Optimal Speed And Precision For Professional Results.

Easy To Use:1/4"(6.35mm) Hex Shank Design Eliminate Slipping In Drill Chuck, These Step Drill Bits Are Compatible With A Range Of Drilling Tools Including Bench Drills Press, Impact Drills, And Hand Drills, Making Them A Versatile Addition To Your Toolkit.

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#TOP 6 Best Hex Step Bit

YOKOCUT HSS Titanium Step Drill Bit Set

YOKOCUT

UK13010004-UK13020004

Step Drill Bit HSS Titanium Step Drill Bit For Metal Multiple Hole Drilling Cone Drill Bit Stepped Up Bits For DIY Lovers (5-35MM Step Bit)

9.3

FTB Score

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The YOKOCUT Step Drill Bit is crafted from 100% genuine HSS 4241, ensuring durability and reliability for your drilling tasks. Its titanium coating enhances its performance, making it more capable in various materials. You will find the two-flute design beneficial for smoother cutting, which allows for cleaner holes. Additionally, the high step design prevents accidental drilling to larger sizes, giving you precise control over your project.

What We Like

Durable HSS 4241 material

Titanium coating for enhanced performance

Smoother cutting with two-flute design

Prevents accidental oversizing

#TOP 7 Best Plastic Drill Bit Set

SS SHOVAN 3PCS HSS Spiral Step Drill Set

ss shovan

SDB-4R

3PCS HSS Spiral Step Drill Bit Sets, SS SHOVAN 4-Flute Metal Drill Bits, 1/4" Hex Shank, Metric 4-32mm Cone Cutter, Hole Cutter for Sheet Metal, Plastic, Steel Plate

9.2

FTB Score

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The SS SHOVAN Step Drill Bits are designed for efficient drilling with their upgraded four-flute spiral design, which helps prevent metal splatter and makes swarf removal easier. The 118° X type openings ensure quicker, smoother drilling, while the 1/4" hex shank eliminates slipping, making it ideal for various materials like plastic, metal, and wood. Crafted from durable titanium-coated HSS 4341 steel, these bits offer excellent wear and corrosion resistance, ensuring longevity. Whether you're expanding holes or doing precision work, this set is a must-have for DIY enthusiasts.

What We Like

Efficient four-flute design

Quick and smooth drilling

Durable titanium coating

Versatile for multiple materials

#TOP 8

YOKOCUT HSS Titanium Step Drill Bit Set

YOKOCUT

UK13010004-UK13020004

Titanium Coated

32 millimeters

Step Drill Bit HSS Titanium Step Drill Bit For Metal Multiple Hole Drilling Cone Drill Bit 4mm to 12/20/32 mm Stepped Up Bits For DIY Lovers (4PCS Spiral Grooved Step Bits Set)

9.2

FTB Score

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The YOKOCUT Step Drill Bits are crafted from 100% genuine HSS 4241 material, ensuring durability and efficiency in your DIY projects. With a titanium coating, these bits enhance cutting performance, making them perfect for drilling holes in various materials like iron, copper, and wood. The two-flute design allows for smoother cutting, reducing the risk of snagging. Additionally, the high step design prevents accidental oversizing, ensuring precision in every drill. These features provide you with the confidence and reliability needed for your home improvement tasks.

What We Like

Durable HSS 4241 material

Titanium coating for efficiency

Smoother cutting with two-flute design

Precision with high step design

#TOP 9

Vearter 4-32mm Cobalt Step Drill Bit for Metal, M35 HSS 15 Steps Cone Cutter, Spiral Flute Triangular Shank Hole Cutter Drill Bit for Stainless Steel, Metal Sheet

Vearter

BTZ-M35-BK3-4-32

4-32mm

Vearter 4-32mm Cobalt Step Drill Bit for Metal, M35 HSS 15 Steps Cone Cutter, Spiral Flute Triangular Shank Hole Cutter Drill Bit for Stainless Steel, Metal Sheet, Aluminium, Plastic, Wood

9.2

FTB Score

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Features

TiAIN Coated: The Hole Drill Bit's TiAIN Coating Makes It More Heat-Resistant And Wear-Resistant, With A Lifespan Twice That Of Other Drill Bits

Various Sizes: The Cone Drill Bit Is Compatible With 15 Sizes - 4 Mm, 6 Mm, 8 Mm, 10 Mm, 12 Mm, 14 Mm, 16 Mm, 18 Mm, 20 Mm, 22 Mm, 24 Mm, 26 Mm, 28 Mm, 30 Mm, 32 Mm. Meet Your Different Needs And Greatly Save You The Trouble Of Choosing Different Unibits

Safe Use: The Triangular Shank Enhances Safety And Stability By Securely Fastening The Drill Hole Cutter To Hand Drills, Bench Drill Presses, And Magnetic Drills, Preventing Any Instances Of Falling Off Or Slipping During Rotation

Revolutionary Design: The Three Fluted Design Of This Cone Cutter Drill Bit Enables Smoother Cutting And Faster Chip Evacuation, Effectively Removing Burrs, Chips, Dust And Other Debris. This Design Helps Prevent Chips From Flying And Enables Smoother Drilling Without Generating Heat

A Must-Have For Handymen And Professionals: The Spiral Grooved Stepped Drill Bit Cuts More Smoothly Than Straight Grooved Ones, Making It Easy To Drill Perfect Holes In Various Materials Such As Stainless Steel, Metal Sheet, Aluminium, Acrylic Sheet, Plastic And Wood

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#TOP 10

KASAFE M35 Cobalt HSS Step Drill Bit

KASAFE

M35 Step Drill (6-24)

Φ6-24

KASAFE M35 Cobalt HSS Step Drill Bit Cover

KASAFE M35 Cobalt HSS Step Drill Bit (6-24mm, 11-Step) for Stainless Steel, Cast Iron, Copper & Aluminum, 1/4" Hex Shank

9.0

FTB Score

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Features

[118° Split Point & Spiral Flute For Precision & Efficiency] The 118° X-Type Cutting Tip Self-Centers To Eliminate Wandering, Allowing Precise Hole Starts Without A Pilot Hole—even On Uneven Surfaces Of Stainless Steel Pipes Or Cast Iron Fixtures. The Spiral Flute Design Efficiently Evacuates Metal Shavings From Copper Plates, Aluminum Panels, And Thin Steel Sheets, Preventing Clogs And Delivering Burr-Free Holes In Half The Time Of Traditional Drills

[Premium M35 Cobalt Alloy For Hard & Soft Metal Drilling] Crafted From M35 Cobalt High-Speed Steel (5% Cobalt Content), This Drill Bit Offers 2X The Hardness Of Standard HSS (66–69 HRC), Engineered For Stainless Steel, Cast Iron, Copper, Aluminum, And Spring Steel. The Heat-Treated Alloy Resists Wear On Hardened Steel Plates And Ensures Clean Cuts On Soft Metals Like Copper/aluminum Sheets, Reducing Bit Dulling By 50% Compared To Non-Cobalt Bits

[Universal 1/4" Hex Shank For Tool Compatibility] The 6.35mm Hex Shank Fits Securely In All Standard Drills, Impact Drivers, And Bench Drills—no Slippage During High-Speed Operation On Hard Metals Like Stainless Steel Or Soft Metals Like Aluminum. It Works Seamlessly With Cordless Drills, Drill Presses, And Hand Tools, Making It A Versatile Choice For Professional Workshops And DIY Projects Alike

[Multi-Material Mastery For Diverse Metalworking Needs] Engineered For Hard Metals (stainless Steel, Cast Iron, Spring Steel) And Soft Metals (copper, Aluminum, Brass), This Step Bit Handles Thicknesses From 1mm (copper Foil) To 5mm (stainless Steel Plate) With Consistent Precision. Perfect For Metalworkers, Electricians, And DIY Enthusiasts Tackling Projects From Stainless Steel Kitchen Installations To Aluminum Sheet Metal Fabrication—no Need For Multiple Tools

[11-Step Sizes For 6-24mm Hole Diameters In One Bit] With 11 Precision Steps 6, 8,10…24mm), This Drill Bit Replaces 11 Individual Bits, Letting You Drill Or Expand Holes Effortlessly In Stainless Steel Brackets, Cast Iron Machinery Parts, Copper Busbars, And Aluminum Alloy Frames. Ideal For Industrial Maintenance, Automotive Repairs, And Electrical Installations, It Saves Up To 30% More Time By Eliminating Frequent Bit Changes

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Frequently Asked Questions (FAQs)

1. What kind of bit do you use for aluminum?

Aluminum is a soft metal and therefore a standard HSS drill bit will be able to drill into it. However because of the low melting point of aluminium a better choice would be to use a cobalt drill bit. The cobalt drill bit will dissipate heat quicker and ultimately assist in reducing heat build up.

2. Can you use a step drill bit on metal?

Step drills are drill bits easy to cut and enlarge a wide range of holes on thin sheet metal, plastic and other materials at a lower speed. Due to the stepped design of multiple diameters, you can drill different-sized holes by one or two step drills.

3. Can you use a paddle bit on aluminum?

no, don't use a spade bit, aluminum has a way of grabbing a drill bit and that can lead to an accident. If you have a drill pess that stands on the floor instead of one of the very small ones, you can purchase a 3/4-inch twist drill bit.

4. What do you use step bits for?

A step drill bit can be used to drill a range of different sized holes with a single bit. Since each bit size drill holes less than 1/4″ deep, a step bit is mainly used for drilling thin material such as sheet metal.

Editor's Notes

During our step bit for aluminium research, we found 209 step bit for aluminium products and shortlisted 10 quality products. We collected and analyzed 7,486 customer reviews through our big data system to write the step bits for aluminium list. We found that most customers choose step bits for aluminium with an average price of £15.51.

The step bits for aluminium are available for purchase. We have researched hundreds of brands and picked the top brands of step bits for aluminium, including LEKOMESH, Techchii, DOVAMAN, YOKOCUT, XZH.

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.