HDCS636 and the neighbouring options in the record

The HDCS636 series provides a reliable solution for non-standard step drilling applications, offering precise control over stepped and counterbored hole geometries.

Series Overview and Application

The HDCS636 series is a TiN-coated left-hand step solid carbide drill designed for non-standard step drilling. This series is particularly useful for creating stepped and counterbored holes in various materials. The TiN coating enhances wear resistance and improves surface finish, making it suitable for applications where precision and durability are critical. The series includes part numbers such as HDCS636-0991, HDCS636-0473, and HDCS636-1315, each tailored to specific drilling requirements.

Key Specifications and Their Impact on Machining

The HDCS636 series has a diameter range of 0.433 to 3.0 mm, allowing for a wide range of drilling applications. The minimum diameter of 0.15 mm ensures that even the smallest holes can be drilled with precision. For instance, the part number HDCS636-0991 has a diameter of 0.433 mm, which is ideal for fine detail work in tight spaces. The geometry callout "D1.0881.60118°+1.502.065°3.238(285)" indicates the specific angles and lengths required for the step drilling process. The 118° and 65° angles are crucial for achieving the correct step depth and ensuring the drill bit does not chatter during operation. The 3.2 mm length of cut and 38 mm total length contribute to the drill's stability and accuracy, reducing the risk of deflection and improving surface finish.

Performance and Material Compatibility

The HDCS636 series is compatible with a variety of materials, including steel, stainless steel, and cast iron. The TiN coating provides excellent wear resistance, extending tool life and reducing the need for frequent replacements. The coating also enhances the drill's ability to maintain a consistent cutting edge, which is essential for achieving tight tolerances. The series is particularly effective in applications where high precision and surface finish are required, such as in the aerospace and automotive industries. The ability to drill stepped and counterbored holes with minimal vibration and chatter makes the HDCS636 series a preferred choice for complex machining tasks.

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 HDCS636 page of this catalogue.