| Specification | Details |
| Brand | Yato |
| Product Symbol | YT-4040 |
| Series | GRD |
| Diameter | 4 mm |
| Overall Length | 75 mm |
| Working Part Length | 43 mm |
| Toolholder Type | Cylindrical |
| Material | HSS-E Co HS6-5-2-5 |
| Surface Finish | Polished |
| DIN Standard | DIN 338 |
| Standard | PN-EN ISO 4957:2002(U) |
| Drill Bit Point Angle | 135° |
| Split Point | Yes |
| High Temperature Resistance | Yes |
| Tensile Strength | >900 N/mm² |
| Pieces | 1 |
| Application | Stainless steel, acid-resistant steel, cast iron, non-ferrous metals, plastic |
| Responsible Entity in EU | TOYA S.A. |
Product Description (Paragraph)
The Yato YT-4040 drill bit from the GRD series is a precision-engineered drilling tool designed for professional and industrial applications. Manufactured from HSS-E Co HS6-5-2-5 high-speed steel, the drill bit provides excellent durability, high temperature resistance, and a tensile strength exceeding 900 N/mm², ensuring reliable performance even in demanding conditions. With a 4 mm diameter, 75 mm overall length, and 43 mm working length, it delivers accurate and efficient drilling results.
The drill bit features a 135° split point, which improves centering and enables faster penetration into materials while reducing slipping during drilling. Its polished surface finish helps minimize friction and enhances cutting efficiency. Produced according to DIN 338 and PN-EN ISO 4957:2002(U) standards, this drill bit is suitable for drilling in stainless steel, acid-resistant steel, cast iron, non-ferrous metals, and plastics. The product is manufactured under the responsibility of TOYA S.A., ensuring compliance with European quality standards.
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