Spiral Flute Step Drill Bit Set
Spiral flute step drills are designed for creating holes of varying diameters in materials such as high-speed steel (HSS). These drills feature a fully-ground process and a tin-coated surface treatment for enhanced durability and performance.
Technical Specifications
Product Overview
Professional Spiral Flute Step Drill Set
This high-performance spiral flute step drill set is engineered for precision hole drilling across a wide range of diameters. Featuring a fully-ground manufacturing process and a durable TiN (Titanium Nitride) coated surface, these bits offer enhanced wear resistance and extended tool life. Designed for versatility, the set includes multiple size configurations to accommodate various industrial drilling requirements.
Technical Specifications
Surface Treatment
TiN CoatedFully-Ground
- Material
- High-Speed Steel (HSS)
- Available Shank Diameters
- 6.5mm8mm10mm13mm
Performance Metrics
Set Configurations
3 pcs
Total Pieces per Set
30 mm
Maximum Hole Diameter
4 mm
Minimum Hole Diameter
Detailed Sizing
Drill Size & Increment Reference
| Hole Range | Steps | Increments | Shank (mm) | Thickness (mm) |
|---|---|---|---|---|
| 4-12 | 9 | 1mm | 6.5 | 5 |
| 4-12 | 5 | 2mm | 6.5 | 11 |
| 6-18 | 7 | 2mm | 10 | 5 |
| 4-22 | 10 | 2mm | 10 | 5 |
| 5-35 | 13 | 2-3mm | 13 | 3.5 |
