Selecting HDCS636: what the production record tells you

The HDCS636 series is ideal for non-standard step drilling applications where precise stepped and counterbored holes are required, based on its verified production record.

Series Overview and Key Specifications

The HDCS636 series is a TiN-coated left-hand step solid carbide drill designed for non-standard step drilling. This series is specifically engineered to create stepped and counterbored holes with high precision. The series code HDCS636 must be used when referencing this product, as it is the exact identifier for the tool. The diameter range of the HDCS636 series spans from 0.433 mm to 3.0 mm, making it suitable for a wide array of drilling applications. The minimum diameter capability of 0.15 mm ensures that even the smallest and most intricate holes can be machined with accuracy.

Critical Measurements and Their Impact on Machining

Two critical measurements from the production record are the diameter range and the example geometry callout. The diameter range of 0.433 mm to 3.0 mm determines the versatility of the HDCS636 series. This range allows the tool to be used in various machining scenarios, from fine detail work to larger hole creation. The example geometry callout, "D1.0881.60118°+1.502.065°3.238(285)", provides insight into the specific cutting geometry and flute configuration. This callout indicates the tool's ability to handle complex drilling tasks with precision, as it specifies the cutting angles and flute lengths that contribute to effective chip removal and surface finish.

Selection Guide and Pre-Order Checklist

When selecting the HDCS636 series for a specific job, it is essential to verify the required diameter range and the specific geometry callout that matches the machining requirements. The diameter range of 0.433 mm to 3.0 mm should be checked against the hole size needed for the application. Additionally, the example geometry callout should be compared with the tool's specifications to ensure compatibility with the intended machining process. The part numbers on record, such as HDCS633-0991, HDCS636-0473, and HDCS636-1315, are examples of the available options and should be considered based on the specific drilling needs. Before ordering, confirm that the tool's coating, TiN, is suitable for the material being drilled, and ensure that the tool's capabilities align with the required hole depth and surface finish.

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.