Best Triangle Step Bits of 2026

Jennifer Fraser Avatar
Jennifer Fraser
Last Updated: 5 Feb 2026

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Triangle Step Bits are a set of drill bits designed for drilling holes in a variety of materials including metal, wood, and plastic. The bits feature a unique triangular shape that allows them to drill multiple hole sizes with just one bit. This makes them a versatile tool for DIY enthusiasts and professionals alike. The bits are made from high-speed steel for durability and precision, and they come in a range of sizes to suit different drilling needs. Whether you're working on a DIY project or a professional job, Triangle Step Bits are a reliable and efficient tool to have in your kit.

At a Glance: Our Top Picks

Mengshen HSS Step Drill Bit Set 10-45mm Cover #TOP 1
Mengshen HSS Step Drill Bit Set 10-45mm
ftb score rating icon 9.8
Meichoon HSS M35 Cobalt Step Drill Bit Set Cover #TOP 2
Meichoon HSS M35 Cobalt Step Drill Bit Set
ftb score rating icon 9.7
Mengshen 6-60mm Step Drill Bit Set Cover #TOP 3
Mengshen 6-60mm Step Drill Bit Set
ftb score rating icon 9.5

Top 7 Triangle Step Bits

#TOP 1

Mengshen HSS Step Drill Bit Set 10-45mm

639510945985
Black
Mengshen HSS Step Drill Bit Set 10-45mm Cover
Mengshen HSS Step Drill Bit Set 10-45mm Spiral Flute, Triangle Shank High Speed Steel Large Bit Nitride Pagoda Step Drill for Carbon Steel, Sheet Iron, Insulation Boards, PVC Boards,Planks, Black

The Mengshen Step Drill Bits are crafted from high-speed steel, making them ideal for materials with a hardness below 25, such as carbon steel and sheet iron. The titanium nitride coating enhances durability, ensuring they last longer during use. With a triangle shank design, these bits fit securely into power tools, preventing slips while you work. The two-flute design allows for faster chip clearance, making your drilling tasks more efficient and less messy. You can even use water for cooling, which further extends their lifespan.

What We Like
Durable high-speed steel construction
Secure triangle shank design
Efficient chip clearance
Suitable for various materials
Cooling option for longer use
#TOP 2

Meichoon HSS M35 Cobalt Step Drill Bit Set

Q-DC17A
4-20 mm
Meichoon HSS M35 Cobalt Step Drill Bit Set Cover
Meichoon HSS M35 Step Drill Bit 4-20mm, Cobalt Spiral Groove Large Bit Pagoda Step Drill Bit Set Hole Reamer Triangle Handle HSS Co Drilling Counterbore DC17A

The Meichoon Step Drill Bit is crafted from M35 high-speed steel and cobalt, ensuring durability and the ability to effortlessly cut through various materials like steel, aluminium, copper, and plastic. Its triangle shank design fits securely into power tools, preventing slips during use. The innovative two-flute design allows for faster chip clearance, making your drilling tasks smoother. Additionally, the split point tip increases drilling speed while automatically deburring holes, keeping your bit clean and efficient.

What We Like
Durable M35 HSS & Cobalt
Secure triangle shank design
Faster chip clearance
Automatically deburrs holes
#TOP 3

Mengshen 6-60mm Step Drill Bit Set

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Mengshen 6-60mm Step Drill Bit Set Cover
Mengshen Forstner 6-60mm Step Drill Bits Spiral Groove 12 Steps Sizes, Large HSS Cobalt Cone Drilling Tool Hole Cutting, Enlarge, Metal Sheet, PVC Sheet Woodworking, Triangle Handle

The Mengshen Step Drill Bits are designed for versatility and efficiency. Made from high-speed steel with a titanium coating, these bits effortlessly cut through various materials like steel, aluminium, copper, and plastic. You will appreciate the automatic deburring feature, which keeps your drill bit clean while working. The split point tip enhances drilling speed, making your tasks quicker and easier. Ideal for home repairs or light professional jobs, this tool is a must-have for any handyman or DIY enthusiast.

What We Like
Durable high-speed steel construction
Effortlessly cuts through multiple materials
Automatic hole deburring feature
Increased drilling speed
Ideal for home and light jobs
#TOP 4

SagaSave 4-20mm Multi-Functional Step Drill Bit

WGP-HA5390C-LF
4-20mm
SagaSave 4-20mm Multi-Functional Step Drill Bit Cover
Step Drill Bit, 4-20mm Nitriding Black Coted 4241 HSS Spiral Cone Cutting Drill with Triangle Shank for Multi-Functional DIY

The SagaSave Step Drill Bit is crafted from 4241 high-speed steel, making it ideal for drilling materials with a hardness of 25° or less, such as carbon plates and steel sheets. Its titanium nitride coating reduces friction, allowing you to extend the drill bit's service life significantly. Sizes are laser etched, ensuring that measurements remain clear even after frequent use. Operating between 250-400 rpm, this drill bit enhances your drilling speed and smoothness, making your DIY projects more efficient.

What We Like
Durable high-speed steel construction
Titanium coating for longevity
Laser-etched sizes for precision
Fast drilling speeds
Corrosion and rust resistant
#TOP 5

KATUR M35 Step Drill Bit Set 4-32mm

BT-5324-Stra
KATUR M35 Step Drill Bit Set 4-32mm Cover
KATUR Step Drill Bit Large Co M35 10mm Triangle Round Shank Step Cone Drill Bit Hole Cutter Set Fluted Edge Step Drill 15 Sizes 4-32mm

The KATUR Step Drill Bit offers an efficient solution by replacing 15 individual drill bits with a single tool that ranges from 4-32mm. Its high-speed steel construction, enhanced with a titanium coating, ensures excellent durability and sharpness, making your drilling tasks smoother and more efficient. The hex shank design prevents slippage during operation, providing stability as you work. Additionally, its two-flute design allows for faster cutting with less pressure, perfect for users looking to punch holes through various materials like metal and wood.

What We Like
Replaces 15 individual bits
Durable titanium-coated steel
Stable hex shank design
Faster, smoother cutting
Versatile for multiple materials
#TOP 6

Dtacke 10mm-45mm Step Drill Bit Set

Dtacke 10mm-45mm Step Drill Bit Set Cover
Dtacke Metric 10mm-45mm/0.39"-1.77" Triangle Round Handle Step Drill Bit Set Titanium Coated Pagoda Hole Drilling Bit for Wood Metal Steel

The Dtacke Step Drill Bits are designed for versatility, featuring a range of sizes from 10mm to 45mm. This set is made from HSS4241 material, ideal for use on softer materials like carbon steel. The titanium coating reduces friction and heat, ensuring smoother operation during use. With its two flute design, you can enjoy enhanced cutting efficiency, making your drilling tasks quicker and easier. Perfect for various projects, these bits are a valuable addition to your toolkit.

What We Like
Versatile size range
Titanium coating reduces friction
Smoother cutting with two flutes
Ideal for softer materials
Convenient for various projects
#TOP 7

5 Pcs HSS Step Cone Drill Bit Set

ZJY-HA5385-LF
5 Pcs HSS Step Cone Drill Bit Set Cover
Step Cone Drill Bit, 5 Pcs HSS 4-12mm/4-22mm/6-18mm/6-35mm Multi-Sizes Hole Cutter Cone Drill Bit with Triangle Shank for DIY Plastic Wood Aluminum

The SagaSave Step Bits are crafted from high-quality HSS material, ensuring durability and resistance to wear. Their ladder design allows you to drill large holes effortlessly without needing to change bits, saving you time during projects. You will find that marking hole locations becomes straightforward, and the two-fluted design guarantees faster and smoother drilling. These versatile bits are perfect for various materials, making them ideal for both home DIY enthusiasts and professional use.

What We Like
High-quality HSS material
Efficient ladder design
Faster, smoother drilling
Versatile for multiple materials
Buying Guide Image
Editor's Notes

During our triangle step bit research, we found 27 triangle step bit products and shortlisted 7 quality products. We collected and analyzed 5,501 customer reviews through our big data system to write the triangle step bits list. We found that most customers choose triangle step bits with an average price of £16.44.

The triangle step bits are available for purchase. We have researched hundreds of brands and picked the top brands of triangle step bits, including Mengshen, Meichoon, SagaSave, KATUR, Dtacke.

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.