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Home > Drilling Tools > Drill Bit Manufacturer Wood Tools Drill Bit Manufacturers Twist Step Drill Bits Set for Metal
Drill Bit Manufacturer Wood Tools Drill Bit Manufacturers Twist Step Drill Bits Set for Metal
Drill Bit Manufacturer Wood Tools Drill Bit Manufacturers Twist Step Drill Bits Set for Metal
Drill Bit Manufacturer Wood Tools Drill Bit Manufacturers Twist Step Drill Bits Set for Metal
Drill Bit Manufacturer Wood Tools Drill Bit Manufacturers Twist Step Drill Bits Set for Metal
Drill Bit Manufacturer Wood Tools Drill Bit Manufacturers Twist Step Drill Bits Set for Metal
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Drill Bit Manufacturer Wood Tools Drill Bit Manufacturers Twist Step Drill Bits Set for Metal
Drill Bit Manufacturer Wood Tools Drill Bit Manufacturers Twist Step Drill Bits Set for Metal
Drill Bit Manufacturer Wood Tools Drill Bit Manufacturers Twist Step Drill Bits Set for Metal
Drill Bit Manufacturer Wood Tools Drill Bit Manufacturers Twist Step Drill Bits Set for Metal
Drill Bit Manufacturer Wood Tools Drill Bit Manufacturers Twist Step Drill Bits Set for Metal

Drill Bit Manufacturer Wood Tools Drill Bit Manufacturers Twist Step Drill Bits Set for Metal

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Product Description

Step Drill Bit Set Packaging
Step Drill Bits Detail

5Pcs Inch Sizes Conical Hex Shank Spiral Flutes Stepped Titanium HSS Step Drill Bit Set for Multiple Hole Steel Metal Cutting

Product Specifications
Size: 1/8-1/2", 3/16-1/2", 3/16-7/8", 1/4-3/4", 1/4-1 3/8" (Metric Size Available)
Material: HSS (Cobalt M35 Available)
Flute Type: Spiral Flute (Straight Flute Available)
Flute Number: Two Flutes (Single and Three Flutes Available)
Shank: Quick Change Hex Shank (Three Flats, Round, and Double R Shanks Available)
Surface Finish: TiN (Bright, Black & Amber, Cobalt Coated, Black Oxide, Black and Bright, TiAlN Available)
Package: 5Pcs in Aluminum Case
Key Features
  • Perfect for drilling and enlarging multiple holes in thin sections of sheet metals, pipes, plexiglass, plastics, and wood up to 5mm thickness.
  • 135° Split Point Tip increases cutting speed with self-centering, preventing drills from running off-center.
  • Drill a wide variety of hole diameters using only one convenient tool.
  • Achieve precise and exact dimensions on all drilled holes.
  • Two-flute design provides a longer operating life and superior chip removal.
  • Spiral groove creates less noise, cleaner cuts, and requires less force during operation.
  • Titanium coating provides up to 2 times longer life over standard high speed steel.
  • Designed exclusively for rotary drill use.
Product Overview & Elevations
Right Elevation View
Right Elevation
Left Elevation View
Left Elevation
Front Elevation View
Front Elevation
Product Dimensions
Product Size Blueprint 1
Product Size Blueprint 2
Product Size Blueprint 3
Metric Size Specifications
Drilling Range (mm) Number of Steps Dia of Steps (mm) Overall Length (mm) Shank Dia (mm)
3-1253-6-8-10-12-6
3-12103-4-5-6-7-8-9-10-11-12-6
3-14123-4-5-6-7-8-9-10-11-12-13-14-6
3-1413-14-6
4-1254-6-8-10-12656
4-1294-5-6-7-8-9-10-11-12656
4-2094-6-8-10-12-14-16-18-20758
4-22104-6-8-10-12-14-16-18-20-228010
4-30144-6-8-10-12-14-16-18-20-22-24-26-28-3010010
4-39134-6-12-15-18-21-24-27-30-33-36-3910710
5-1355-7-9-11-13656.35
5-2015-20--
5-25115-7-9-11-13-15-17-19-21-23-25--
5-25115-7-9-11-13-15-17-19-21-23-25829.5
5-35135-13-15-17-19-21-23-25-27-29-31-33-358212.7
6-1876-8-10-12-14-16-18-10
6-2086-8-10-12-14-16-18-20719
6-2576-9-12-16-20-22.5-256510
6-30136-8-10-12-14-16-18-20-22-24-26-28-3010010
6-3296-9-12-16-20-22.5-25-28.5-327610
6-35136-8-10-13-16-18-20-22-25-28-30-32-35-10
6-36116-9-12-15-18-21-24-27-30-33-368510
6-38126-9-13-16-19-21-23-26-29-32-35-3810010
6-40166-11-17-23-29-30-31-32-33-34-35-36-37-38-39-4010513
8-2078-10-12-14-16-18-20--
Similar Products
Similar Drill Bit Option 1
Similar Drill Bit Option 2
Similar Drill Bit Option 3
Manufacturing and Quality Control
Manufacturing Quality Control
We are a professional manufacturer and trader specialized in the research, development, and production of long length twist drills, taper drills, and step drills. All of our products comply with international quality standards and are greatly appreciated in a variety of different markets throughout the world.
Production Workshop
Our Advantages:
1) Direct manufacturer with 100% export reach to global markets (including USA, Israel, Jordan, Thailand, Dubai, South Africa, Kenya, Egypt, Australia, UK, Spain, Brazil, etc.).
2) Over 10 years of professional manufacturing experience.
3) Wide product lineup: HSS drill bits, masonry drills, SDS drills, glass & tile drills, step drills, Taper Point Drill Bits, Center Drill Bits, Brad Point Drill Bits, and complete drill sets.
4) Exceptional validation rate: Over 95% of clients place formal orders after evaluating samples.
Product Classifications & Reference Details
Product Classification Overview
Classification Detail A
Classification Detail B
Applications & Logistics
Application Range
Applications: Woodworking, Masonry, and Metalwork
Packaging and Shipping
Shipping Modes: Ocean Freight, Air Freight, and Express Courier
International Hardware Exhibitions
Participated in prominent industry exhibitions including the Shanghai Hardware Exhibition, Japan Tool Show, and Zhejiang Yongkang Exhibition.
Exhibition Booth View 1
Exhibition Booth View 2
Exhibition Booth View 3
Exhibition Booth View 4
Packaged Products Display
Standard and custom packaging solutions for step drill sets, SDS Plus drill sets, and wood spade drill sets.
Frequently Asked Questions
What types of drill bits do you specialize in?
We manufacture and export high-performance step drills, SDS drill bits, masonry drills, glass & tile drills, twist drills, and complete tool sets.
How is product quality guaranteed?
We maintain strict quality control standards. A pre-production sample is verified prior to mass manufacturing, and a final inspection is always conducted before shipment.
What materials can these step drill bits cut?
These step drill bits are perfect for drilling and enlarging holes in thin sections of sheet metal, pipes, plexiglass, plastics, and wood up to a thickness of 5mm.
What delivery terms and services do you support?
We accept international delivery terms including FOB, CFR, CIF, EXW, FCA, and DDU. We transact in USD and CNY, with customer support available in English, Chinese, and Korean.
Why should we choose you over other suppliers?
With over 10 years of direct manufacturing experience, we focus on superior product quality and maintain a professional customer service team to manage your order smoothly from inquiry to shipment.
Which markets do you primarily export to?
Our products are distributed globally, with major customer bases in North America, Western Europe, South America, Southern Europe, Eastern Asia, and Southeast Asia.

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