SDC: Slim Design Collet / Slim Drive System (Engineered with a half-cone angle design to yield significantly higher gripping force and lower rotational interference compared to standard ER collets).
08 / SDC8: Series frame size (Dictates the outer physical diameter and matching chuck envelope, typically featuring an 8 mm shank scale capability
Precision/Runout: Built to extreme tolerance standards, maintaining a runout accuracy of ≤ 5 microns (0.005 mm).
Material Hardness: Typically manufactured from premium spring steel (like 65Mn or SUJ2) heat-treated to HRC 48–55 for durability and flexibility.