Where DC426 fits in the process sequence

The series DC426 black-coated solid carbide drill delivers consistent performance in micro drilling applications, with specific geometric and dimensional parameters that directly influence tool life and surface finish.

Series Overview and Application

The series DC426 is a black-coated solid carbide drill designed for precision micro drilling in steel, stainless steel, copper, and aluminium alloys. This series is particularly suited for applications requiring high accuracy and minimal tool wear. The coating enhances the tool's resistance to wear and thermal degradation, making it ideal for high-speed machining environments. The series includes a wide range of part numbers, with diameters ranging from 0.04 mm to 3.0 mm, allowing for versatile use across various machining scenarios.

Key Measurements and Their Impact

Two critical measurements from the production record are the diameter range and the minimum diameter capability. The diameter range of 0.04 mm to 3.0 mm ensures that the DC426 series can be used for a broad spectrum of drilling tasks, from very fine micro holes to larger diameter applications. The minimum diameter capability of 0.10 mm is particularly significant for micro drilling, as it allows for the creation of extremely small holes with high precision. These measurements are crucial because they determine the tool's ability to maintain dimensional accuracy and surface finish, which are essential in high-precision manufacturing.

The diameter range and minimum diameter capability directly affect the machining process by influencing the tool's ability to cut through different materials efficiently. A smaller diameter requires more precise control and higher feed rates, which can impact tool life and surface finish. Conversely, larger diameters may require more robust tooling and different cutting parameters to maintain efficiency and accuracy.

Geometric Callout and Performance

The geometric callout "D1.0073*38" provides insight into the tool's design and intended use. The "D1.00" indicates the diameter of the drill, while the subsequent numbers represent the flute length, helix angle, and other critical dimensions. This specific callout ensures that the tool is optimized for the materials and applications it is designed for, contributing to its effectiveness in micro drilling. The combination of these geometric features, along with the black coating, enhances the tool's performance by reducing friction and heat generation, which are common issues in micro drilling operations. Overall, the DC426 series is a reliable choice for applications where precision and durability are paramount.

Verified production record

Figures above are transcribed from the production order record and the printed catalogue extracts. Confirm the held tolerance for a specific part number in the written quotation.

See the recorded geometry on the DC426 page of this catalogue.