Hole Saws & Step Drills
Premium Fully Ground HSS Step Drill Bit – Straight Flute for Tube & Sheet Fabrication
Premium Fully Ground HSS Step Drill Bit – Straight Flute for Tube & Sheet Fabrication
Quick Specifications
| Product Name | Fully Ground HSS Step Drill Bit (4-20mm) |
|---|---|
| Drill Type | Step Drill Bit |
| Material | High Speed Steel (HSS) |
| Finish | Bright Finish (Uncoated) |
| Flute Type | Straight Flute |
| Size | 4-20mm (9 Steps: 4, 6, 8, 10, 12, 14, 16, 18, 20mm) |
| Shank Type | Straight Shank |
| Process | Fully Ground |
| Application | Steel / Metal Drilling |
| Warranty | No |
- Factory Direct Pricing
- Strict Standard QC
- Support OEM / Custom Packaging
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Product Details
Premium Fully Ground HSS Step Drill Bit – Straight Flute for Tube & Sheet Fabrication
Precision Engineering for Efficient Sheet Metal and Tube Drilling
Maximize your fabrication efficiency with Xiaoman Tools' Fully Ground High-Speed Steel (HSS) Step Drill Bits. Manufactured in our advanced facility, these uncoated, bright-finish step drills undergo a rigorous fully-ground process, resulting in razor-sharp cutting edges and reduced drilling friction. Designed specifically for HVAC professionals, electricians, and auto-body workers, this tool delivers perfectly round, deburred holes in mild steel, aluminum, copper, and plastics without the need for center punching.
Key Technical Advantages
- Fully Ground Craftsmanship: Unlike cheaper milled bits, our fully ground manufacturing process ensures ultra-precise dimensions, a sharper cutting edge, and a significantly smoother surface for flawless chip ejection.
- Optimized Straight Flute: The classic straight twin-flute design provides excellent control and is exceptionally easy to resharpen, extending the overall lifecycle of the tool in busy workshops.
- Premium HSS Material: Forged from high-quality High-Speed Steel, offering a perfect balance of toughness and wear resistance for continuous drilling in thin metals and tubes.
- Multi-Step Efficiency (4-20mm): Features 9 clearly laser-etched steps (4, 6, 8, 10, 12, 14, 16, 18, 20mm), allowing operators to drill a wide variety of hole sizes with a single, quick-change tool.
- Self-Starting Tip: The precision-engineered split point prevents walking and skating on smooth pipes and sheet metal, enabling instant, accurate starts.
Technical Specifications
| Brand / Manufacturer: | Xiaoman Tools (Shanghai, China) |
| Material: | Premium High-Speed Steel (HSS) |
| Manufacturing Process: | Fully Ground (CNC Precision) |
| Surface Finish: | Bright Finish (Uncoated) |
| Size / Steps: | 4-20mm (9 Steps) |
| Flute Type: | Straight Flute |
| Target Applications: | Mild Steel, Aluminum, Copper, Brass, Plastic, Wood |
| Wholesale & OEM: | Accepted (Custom Packaging & Laser Engraving) |
