Top 10 Best step drill bit in 2026

Last Updated - 6/7/2026

🏆Best Choice

IRONANT

IRONANT Step Drill Bits, 5PCS HSS Titanium Step Drill Bit Set, 50 Sizes High Speed Steel Step Bits for Metal with Aluminum Case

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•HSS Titanium Coating: The step drill has excellent sharpness and durability due to its high speed steel material and titanium coating
•118° Split Point Tip & Dual-flute Design: increases cutting speed with self-centering and prevents walking, clears chips faster and allows particles to escape easily
•50 Sizes in 5 Pcs: The step drill bit kit includes 5 standard pieces with totally 50 sizes for versatility, enough for your DIY needs
•Widely Application: Ideal for drilling holes in plastic, aluminum, iron and many other types of sheet metal (Not recommended for stainless steel & wood)
•Equipped with a well-organized case, make it more convenient for using and storing the step drills

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$20.89

$32.99

-37%

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ZELCAN

ZELCAN 10 Sizes Titanium Step Drill Bit, 1/4 to 1-3/8 Inches High Speed Steel Drill Cone Bits for Sheet Metal Hole Drilling Cutting, HSS Multi Size Hole Stepped Up Unibit for DIY Lovers Electrician

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•Durable HSS Drill Bit ----- High-speed steel makes it last longer than others, titanium coating ensure easily cut through iron sheets, aluminum sheets, copper & plastic & wood board and many other types of sheet metal with ease, and it can automatically deburr holes while drilling to keep the drill bit clean.
•Titanium Coating ----- Coated with titanium, this step drill set performs well in heat, corrosion and rust resistance.
•Revolutionary Design ----- Tri-flatted shank fits into power tools chuck securely and eliminates slip; two-flute design clears chips faster and allows particles to escape easily.
•Includes 10 Step Sizes ----- 1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-3/8".
•A Must-Have for Handyman or Professionals ----- Perfect for home repairs and light jobs such as drilling holes in plastic, aluminum, copper, iron and many other types of sheet metal (excluding steel or any other harder metal).

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$9.99

$10.99

-9%

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NEIKO

NEIKO 10181A Step Drill Bit Set, 3 Piece, Spiral Grooved for Faster Drilling, Step Bits for Stainless Steel, Metal, Wood, Plastic, Unibit Cone Drill Bits with 31 Step Sizes Total

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•PREMIUM STEP BIT: Each unibit is constructed of industrial high-speed steel with a titanium nitride coating for durability and strength to punch and drill clean holes in materials like plastic, aluminum, wood, copper, stainless steel, and other types of sheet metal.
•STEP DRILL BIT FOR METAL: With a split point tip that accelerates cutting speed while preventing angled walking away from center line of bore, drilling holes in metal is fast, efficient, and clean.
•SPIRAL DESIGN: The two-flute spiral grooved design deburrs chip, dust and debris for clearance and smooth cutting. With 31 step sizes, each hole made with these step bits will be precise.
•QUICK-CHANGE: The 1/4-inch hex shank makes for easy, convenient, and quick stepper bit switches and is compatible with impact ready power tools.
•INCLUDES: Each bit set comes with 3 drill bits of a combined 31 sizes to add to your drilling arsenal: 13 step drill (1/8, 5/32, 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 13/32, 7/16, 15/32, 1/2-inch) 6 step drill (3/16, 1/4, 5/16, 3/8, 7/16, 1/2-inch) and 12 step drill (3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8-inch).

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$13.71

$16.99

-19%

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AugTouf

toolant Four Spiral Flute Cobalt Step Drill Bit(Pro), 1/4"-3/4" Impact Ready Unibit Step Drill Bit, 1/4" Hex Shank Step Bits for Metal, Stainless Steel, Aluminum, Plastic

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•FOUR SPIRAL FLUTE - Four cutting blades design guarantees a faster and smoother cutting. Feels like a hot knife through butter!
•TiAlN COATING - With 89HRC surface hardness, harder materials can be cut and higher cutting speeds can be achieved.
•M35 COBALT HSS STEP DRILL - Prefect for 1/8"(3mm) thick Stainless Steel/Metal Sheet/Wood/Plastic/Aluminum Sheet/Copper and other metal sheets.
•9 STEP SIZES - Includes 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4".
•WARRANTY - If you are not fully satisfied for any reason, please contact us for 100% refund or replacement. If the hex shank snap off, please contact us for replacement.

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$19.77

$22.55

-12%

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Aleric

Aleric Step Drill Bit Set - Titanium Coated, High Speed Steel Drill Cone Bits for Aluminum, Wood and Plastic Hole Drilling Cutting, Multi Size Hole Stepped Up Unibit for DIY Lovers,3pcs

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•【QUILITY STEP DRILL BITS】 The step drill bits are made of classic high speed steel with titanium coating for proven capability and durability in drilling holes in plastic, aluminum, wood board, copper ect.
•【DOUBLE CUTTING BLADES DESIGN】The high speed steel step drill bit set is designed with double cutting blades, which provides faster, smoother and accurate drilling.
•【TRI-FLATTED SHANK】 Each unibit step drill bit optimally fits into power tools such as impact drill chucks securely and eliminates slip for higher efficiency of output.
•【WELL PERFORMED 】 The multiple hole drill bit set include 28 size, which can cuts through aluminum , wood board and other surfaces creating relatively clean holes as you drill. Suitable for home DIY, and general building/ engineering use.t slippage and shedding during the rotation.
•【SET INCLUDES】The cone drill bits set includes 3 common sizes for versatility. Bit #1 (6 steps): 3/16", 1/4", 5/16", 3/8", 7/16", 1/2"; Bit #2 (13 steps): 1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", 1/2"; Bit #3 (9 steps): 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4". If you are not fully satisfied with the step bit for any reason, please contact us for 100% refund or replacement.

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$6.99

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COMOWARE

COMOWARE Step Drill Bit for Metal, Titanium Coated, Double Cutting Blades, High Speed Steel, Short Length Drill Bit, Total 10 Sizes from 1/4” to 1-3/8", for Steel Sheets Aluminum Copper Plastic Wood

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•HSS step drill with Titanium Coating – High-speed steel material ensures a longer service life.This unibit step drill bit features advanced heat/corrosion/rust resistant coating, specially engineered for demanding metal drilling applications.
•Multi-Material Performance – This step drill bit set effortlessly drills through steel sheets, aluminum, wood, and plastic with clean holes. The step bits are perfect for DIY home projects and professional building/engineering applications.
•Two Straight Flutes stepped drill bit - The dual-flute design ensures faster chip removal and cleaner holes. This step drill bits for metal provides smoother cutting while efficiently evacuating chips for peak drilling performance.
•Tri-Flatted Shank Step Bit Set - These professional step drill bits feature 3 precision-flatted shanks for maximum grip, eliminating slippage under high torque. The enhanced design ensures secure clamping in pistol drills.
•Size Includes - This metal step drill bit drills 10+ sizes (1/4" to 1-3/8") without bit changes—laser-etched markings on the unibit allow instant size identification for precision metalworking.

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$9.99

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Jerax tools

Jerax tools HSS 1/4-2 Inch Large High Speed Steel Step Drill bits, Doubles Flutes Large Step Bits for Hole Drilling in Iron, Copper, Aluminum, Wood, Plastic

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•[Made of High Speed Steel]: Premium material and surface treatment ensures the durability and sharpness. This unibit can drill holes on Iron, Aluminum, Copper, Plastic, Wood, or anything that has similar or lower hardness as these materials.
•[No Pilot Hole Required]: Self-starting & non-walking spilt point tip design helps you start drilling quickly.
•[Non-stop]: Our Polished Steps and Size Highlights let you able to see target hole size during drilling. No need to stop in the middle of the drilling and check. Save you time and hassle.
•[Multi Hole Sizes]: This 2" step bit comes with 10 marked sizes so you can drill 10 different hole sizes, saving you time and effort to change bits. Marked sizes including: 1/4", 3/8", 19/32", 3/4", 1", 1-3/16", 1-3/8", 1-5/8", 1-3/4", 2".
•[Know More About Us]: Jerax tools is a professional step bits manufacturer and all our step drill bits are all made of HSS. We also provide the high grade & top grade step bits for stainless steel & other thick material. Visit our store to know more tools!

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$29.95

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Anfrere

Anfrere 10 Sizes Step Drill Bit for Metal Sheet, 1/4 to 1-3/8 Inches High Speed Steel Drill Cone Bits for Hole Drilling Cutting, HSS Multi Size Hole Stepped Up Unibit

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•HSS Titanium Coating - High speed steel along with titanium coating ensures outstanding durability and sharpness, can reduces the friction, runs cooler.
•Size Includes - 10 Sizes from 1/4 to 1-3/8 inch can fit the majority of brands currently on the market.
•Meet Your Demands - With the step drill bits we offered, you can process different kinds of diameter holes, which greatly saves you a lot of trouble.Great for steel sheets/ aluminum sheets/ copper/ plastic/ wood board and many other types of sheet metal with ease countersunk. Suitable for Home DIY, and General Building/ Engineering Use.
•A Must-Have for Handyman or Professionals - Perfect for home repairs and light jobs such as drilling holes in plastic, aluminum, copper, iron and many other types of sheet metal (excluding steel or any other harder metal).
•Quick Chip Removal - Double flutes design allows the particles escape easily for a clean drilling operation.

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$11.59

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Drill America

Drill America 3 Piece Cobalt Stepped Point Drill Bit Set (3/6", 1/4", 5/16"), GSC Series ZMPOUGSC3

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•Stepped Point Cobalt Drill Bits start easier, drill faster, increase lifespan and reduce heat compared to standard drill bits
•They can be used to enlarge existing holes or to create new, smoother holes
•For use in a wide range of materials such as acrylics, steel, metal, brass and other hard metals
•These drills have a 135 degree split point tip to prevent walking
•Sizes in set: 3/6", 1/4", 5/16"

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$20.06

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Hendar

Titanium Coated HSS Step Drill Bit – 10 Sizes (1/4" to 1-3/8") | High-Speed Steel Unibit for Metal & Plastic Sheet Drilling

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•HSS Titanium Coating : Made from high-speed steel with a titanium coating for excellent sharpness, durability, and longer tool life
•Dual-Flute Design : Clears chips quickly and allows easy particle escape for efficient drilling
•118° Split Point Tip : Self centering tip increases cutting speed
•Wide Application : Ideal for drilling plastic, wood,aluminum, iron, and sheet metal (not suitable for stainless stee)
•Multiple Sizes: 10 sizes from 1/4 to 1-3/8 Inches

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$8.99

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