Advanced Small Diameter Carbide Drill for Stable, High-Precision Machining
TOYOKAWA, AICHI, JAPAN―July 23, 2025―OSG Corporation today announced the release of AD-MICRO, the latest addition to its small diameter carbide drill series. Engineered for exceptional stability and precision, the AD-MICRO is designed to overcome the challenges of small diameter hole machining, particularly those caused by unstable chip evacuation.
The AD-MICRO features cutting-edge specifications and flute geometry optimized for small diameter applications. These enhancements enable the formation of stable chip shapes—even when using external coolant—ensuring reliable, uninterrupted machining performance. For drills over 2 mm in diameter, the AD-MICRO incorporates a Shoulder Edge Guard (SEG) to prevent chipping at peripheral corners, further improving tool durability and machining consistency.
Equipped with OSG’s proprietary KeptA coating, the AD-MICRO delivers superior surface smoothness and uniform film thickness. This advanced coating technology enhances chip evacuation, maintains high-precision diameter tolerances, and supports stable machining across a wide range of materials.
The AD-MICRO is suitable for a broad spectrum of materials including carbon steel, alloy steel, hardened steel, stainless steel, cast iron, aluminum alloys, titanium alloys, and heat-resistant alloys. It is available in diameters ranging from 0.5 mm to 3 mm, with drill lengths of 4xD and 10xD.
For more information on OSG’s AD-MICRO small diameter carbide drill
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