Spiral Flute Step Drills
Spiral Flute Step Drills

Spiral Flute Step Drills

√ WIDELY APPLICATION For Metal Sheet/Wood/Plastic/Aluminum
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Product Details ofSpiral Flute Step Drills

SHALL Spiral Flute Step Drill Bit, 1/4"-3/4" Impact Ready Titanium Coated Unibit Step Bit, 1/4" Hex Shank Unibit for Metal, Aluminum, Wood, Plastic, Spiral Cut Mushroom Drill.

Material: Stainless Steel, High Speed Steel;

Finish Type: Titanium


SHALL step drills are ideal for electrical contractors, sheetmetal workers and auto mechanics. Step drills are designed for drilling repetitive holes in steel, stainless steel, copper, brass, aluminium, plastic, plexiglass, laminates and many other thin materials.


Why Choose SHALL  Spiral Flute Step Drills

● FOUR SPIRAL FLUTE - Four cutting blades design guarantees a faster and smoother cutting. Feels like a hot knife through butter!

● HIGH SPEED STEEL STEP DRILL - Prefect for Metal Sheet/Wood/Plastic/Aluminum Sheet and Copper. Not for Stainless Steel.

● 1/4" HEX-SHANK QUICK CHANGE - Quick release slot to eliminate slipping

● 90 DAYS 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.

Types of SHALL Step Drills

Straight Flute Step Drills (Metric)

Straight Flute Step Drills (Metric)

Point thinning according to DIN 1412 C

High performance steel, straight grooved

118° pointed angle, 90° stepped angle

Straight Flute Step Drills (Inch)

Straight Flute Step Drills (Inch)

Point thinning according to DIN 1412 C

High performance steel, straight grooved

118° pointed angle, 90° stepped angle

Cobalt Four Spiral Flute Step Drill Bit

1/4" M35 Cobalt Four Spiral Flute Step Drill Bit

for Metal, Wood, Plastic

Conical Drills

Conical Drills

Point thinning according to DIN 1412 C

118° pointed angle, 20-30 cone angle

High performance steel

HSS Countersink

HSS Countersink



Used for parts of 60° , 90° hole chamfer or taper cutting machining.

Provide the lead in for a second machining operation, complete

the cone of the processing times for the small amount.

HSS Twist Drills

HSS Twist Drills

Masonry Drill Bit

Masonry Drill Bit

Drill Bit & Chisel Set

12PCS SDS Plus Drill Bit & Chisel Set

About Us

SHALL GROUP, as a professional hardware and tools supplier, was founded in 1998. In the over 20 years history of supplying high quality products for our clients, we've helped many brands grow from newcomers to Top 5 or even Top 3 brands in their local markets and countries. Because of our team's excellent work and professional service, we get a lot of praise from our clients and win very good reputation in this industry.


Why Choosing SHALL As Your Electric Planer Manufacturer

✔ We support Tools one stop service

✔ We SHALL Group was founded in 1998, more than 20 years of experience in the tools industry

✔ Full range of tools, power tools, power tools accessories, garden tools, hand tools, tools set, etc. More than 10,000 items, can satisfy all the tools requirements, bring wide market benefits to customers

✔ Professional R&D and Sales Service Team

✔ Self-owned factory with competitive and reasonable price, lifting our production quality

✔ High quality production and design standards for safe and reliable use. Built to international standards CE/GS/EMC/ETL/ROHS/UL for products, environmental management system certification BSCI & ISO

✔ ODM&OEM Customization services

✔ Strict Quality Control

✔ Low MOQs, fast delivery

✔ Strong financial situation to support input marketing, QA, new product developing


What are step drills Good For?

Step drill bits are common on construction sites and are used to enlarge holes in thin metals, as well as in other materials like plywood, drywall, and particleboard. Electricians use step drill bits quite frequently, as they are perfect for drilling holes in the thin metal boxes that hold wiring.

What is the advantage of a step drill bit?

Their variable diameters make them much faster than standard drill bits to shape large holes. Step drill bit work incredibly well on metal sheets. It is easy to drill into soft materials because of the lower acute cut angle that is a feature of the step drill bit.

How thick of metal can a step bit drill?

1/4 of an inch thick

Step drill bits are used to drill metal up to 1/4 of an inch thick. Step drill bits are designed to enlarge a hole as the bit drills through the sheet metal.

Types of Drill Bits

· Power Drills.

· spade drill bits.

· auger bits.

· countersink bits.

· step drill bits.

· twist drill bits.

· auger bits.

· masonry drill bits.

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