Professional 10-piece HSS-E cobalt drill bit set with diameters from 1-10mm, featuring high-temperature resistance, 135-degree split point design, and DIN 338 compliance for superior metalworking performance.
The YATO CO-HSS Twist Drill Bit Set (YT-41603) is a professional-grade collection of 10 high-performance drill bits designed for demanding metalworking applications. This comprehensive set includes drill bits ranging from 1mm to 10mm in diameter, featuring advanced cobalt-enhanced HSS-E Co HS6-5-2-5 material composition that delivers exceptional durability and heat resistance. Each bit is engineered with a 135-degree split point design for precise centering and reduced walking, ensuring clean, accurate holes in various materials.
These drill bits are specifically formulated to withstand high-temperature operations with tensile strength exceeding 900 N/mm², making them ideal for drilling through stainless steel, acid-resistant steel, cast iron, non-ferrous metals, and plastics. The polished surface finish reduces friction and heat generation during drilling operations, extending tool life and improving overall efficiency. Compliant with DIN 338 and PN-EN ISO 4957:2002(U) standards, these bits represent the pinnacle of precision tool engineering.
The set features cylindrical toolholder design for universal compatibility with standard drill chucks, making it an essential addition to any professional workshop or industrial toolbox. Whether you're a seasoned mechanic, metal fabricator, or construction professional, this YATO drill bit set delivers consistent, reliable performance across a wide range of metalworking tasks.
Key Features
- HSS-E Co HS6-5-2-5 cobalt-enhanced material for superior durability and heat resistance
- 10-piece set with diameter range from 1mm to 10mm for versatile applications
- 135-degree split point design ensures precise centering and reduced walking
- Tensile strength exceeding 900 N/mm² for demanding metalworking tasks
- Polished surface finish reduces friction and extends tool life
- DIN 338 and PN-EN ISO 4957:2002(U) certified for professional standards
- Suitable for stainless steel, acid-resistant steel, cast iron, and non-ferrous metals
- Cylindrical toolholder design for universal chuck compatibility
Technical Specifications
| Specification |
Value |
| Brand | YATO |
| Model | YT-41603 |
| Series | GRD |
| Material | HSS-E Co HS6-5-2-5 Cobalt-Enhanced High-Speed Steel |
| Diameter Range | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 mm |
| Overall Length | 34, 49, 61, 75, 86, 93, 109, 117, 125, 133 mm |
| Working Part Length | 12, 24, 33, 43, 52, 57, 69, 75, 81, 87 mm |
| Toolholder Type | Cylindrical |
| Surface Finish | Polished |
| Drill Bit Point Angle | 135 degrees |
| Split Point | Yes |
| DIN Standard | DIN 338 |
| ISO Standard | PN-EN ISO 4957:2002(U) |
| Tensile Strength | Greater than 900 N/mm² |
| High Temperature Resistance | Yes |
| Number of Pieces | 10 |
| Applications | Stainless Steel, Acid-Resistant Steel, Cast Iron, Non-Ferrous Metals, Plastic |
| Price | 52.13 PLN (incl. VAT) |
| Warranty | 14 days for easy returns |
| Availability | 50 units in stock |
