ZLY Solid Carbide Step Drill Bit
- Your preferred carbide step drill supplier
- ISO 9001 standard
- Fast sample delivery
- Minimum order quantity only 3 pcs
Custom Tungsten Step Drills Manufacturer
ZLY carbide step drills are designed for use on drilling machines and CNC machining centers, and can efficiently complete multi-diameter machining in a single operation.
This step drill is mainly suitable for thin plates, countersunk holes, and step hole machining, saving the time required to change multiple drills and reposition the workpiece.
- 20 years of experience in the design and manufacture of non-standard step drills.
- We can customize drills to meet your specific application requirements.
- Reliable quality and stable performance.
- All ZLY carbide cutting tools are manufactured in accordance with ISO 9001 standards, dedicated to providing high-quality tools for your project.
Custom Step Drill Size Range Available from ZLY
ZLY tungsten carbide step drills can accurately drill step holes, enlarge holes, and drill holes of different diameters. They enable convenient and efficient machining and reduce the number of tool changes.
This drill can be used on a variety of materials, such as aluminum alloys, copper alloys, steel, stainless steel, and titanium alloys.
Likewise, our step drills have proven applications in industries such as medical device manufacturing, automotive manufacturing, and electronics manufacturing.
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Cutting Diameter |
1mm – 35mm |
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Cutting Length |
3mm – 250mm |
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Shank Diameter |
1mm – 32mm |
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Overall Length |
20mm – 330mm |
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Number of Steps |
1 – 5 Steps |
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Coating Services |
TiN, TiCN, TiAIN, ALTiN, DLC, etc. |
Send Your Inquiry On ZLY Carbide Step Drill Bits
Additional Services
Beyond supplying high-quality cutting tools, we also offer the following services:
- Competitive pricing
- Free tool design based on your workpiece drawings
- Free dimensional inspection based on your tool samples
- Laser marking according to your requirements
- Free local delivery within Thailand
Recent Walk in Step Drill Bits Order
Carbide Step Drill – Your Ultimate FAQs Guide
What is a step drill?
ZLY step drill is an efficient industrial drill made of cemented carbide. Its cutting end is designed in a stepped shape, allowing it to machine holes of different diameters or large holes in a single operation.
What are the applications of step drills?
Step drills are used in various fields. They can replace multiple drills and achieve one-time drilling to efficiently machine holes of different diameters.
They are widely used in aerospace, automotive, medical, electronics, and mechanical manufacturing industries.
Why do we need step drills?
Using step drills saves time.
When machining workpieces with holes of different sizes, frequent drill changes are required. Step drills can solve this problem.
What types of step drills can ZLY produce?
According to your different requirements, ZLY can design step drills that can complete drilling and chamfering at the same time, or step drills for 90-degree stepped holes.
What are the quality standards for step drills?
At ZLY, first, we follow the ISO 9001 quality standard.
In addition, we have the following internal standards, including:
Appearance inspection: Using a 50× magnifier for 100% visual inspection to check for chipping, whether the cutting edges are fully ground, and whether there are vibration marks.
Dimensional inspection: We use ZOLLER inspection equipment and laser measuring instruments to strictly measure dimensions and ensure consistency with the drawings.
Regular inspection: For every 3 pieces produced, we carry out inspections to ensure that no dimensional variation occurs during machining.
Cleaning: We use ultrasonic cleaning equipment for secondary cleaning to ensure there are no water marks, oil stains, or fingerprints at delivery.
Sandblasting: Overly sharp cutting edges can easily chip. For tools with higher requirements, we apply a sandblasting process. Without affecting sharpness, the sharp edges are blasted into rounded edges, which can effectively improve surface finish and tool life.
What should be noted when machining with carbide step drills?
You need to pay attention to the feed rate and ensure sufficient cooling.
How should I choose the coating?
When machining aluminum alloys and copper alloys, we generally use a DLC coating or no coating.
When machining hard metals, we recommend using composite coatings.
Do not worry, ZLY’s experienced engineers will design everything for you.