3Pcs HSS Straight Groove Step Drill Bit 3-12mm 4-12mm 4-20mm Nitride Black Hex Wood Metal Hole Cutter Core Drilling Tools Set
You will be redirected to AliExpress to complete your purchase
Specifications
- Brand Name
- Mr Drill
- DIY Supplies
- Woodworking
- Type
- Core Drill Bit
- High-concerned chemical
- None
- Origin
- Mainland China
- Model Number
- RCS0593BK
- Material
- High Speed Steel
- Length
- 55/74/77cm
- Use
- Metal Drilling
- is_customized
- Yes
- Certification
- CE
- Choice
- yes
Product Description
• High-Speed Steel Material :Crafted from high-speed steel, this drill bit ensures durability and longevity, providing you with a reliable tool for your metalworking needs.
• Versatile Size Range :With sizes ranging from 3-20mm, this drill bit set caters to a variety of drilling needs, making it a versatile addition to your toolkit.
• Nitride Black Hex Design :The nitride black hex design of the drill bits enhances their resistance to wear and tear, ensuring they can withstand rigorous use.
• Core Drill Bit Type :As a core drill bit, it is designed to provide precise and clean cuts, making it ideal for intricate metalworking projects.
• DIY Supplies :Perfect for DIY enthusiasts, this drill bit set allows you to create intricate designs and patterns on your metal pieces with ease.
• Originated from Mainland China :Originating from Mainland China, this drill bit set reflects the country's renowned craftsmanship and attention to detail.
Features:
1.100% brand new and high quality.
Made of high quality HSS steel, hard and wear-resistant.
3. Suitable for a variety of materials, can easily punch holes in wood, aluminum, plastic boards, insulating boards and other materials.
4. Face shank design to prevent slippage when chucking.
5. Two groove designs drive faster, smoother and cleaner cutting Each step is clearly marked with the depth diameter of the step.
Specifications:
Material: High speed steel
Color: Black
Size: 3-12mm/4-12mm/4-20mm
Application: It is suitable for drilling and hole reaming processing of wood, aluminum, plastic board, insulating board and other materials with a thickness of less than about 5mm.
Package Include:
set 1 :3*HSS Straight Groove Step Drill Bit
Note:
1. Please allow 1-3 cm error due to manual measurement.
2. As different computers display colors differently, the color of the actual item may vary slightly from the above images, thanks for your understanding.
Product information last updated on February 10, 2026