The Next Generation Spindle Connection System KM4X KMTS (ISO) • Three surface contact. • Superior static and dynamic stiffness. • Static and rotating applications. • Three surface contact. • Highest maximum speed. • Superior static and • ISO (HSK) tool change groove. dynamic stiffness. • Sizes available: • Static and rotating – KM4X63 applications. – KM4X100 • Higher speed. – KM4X125 • Higher stiffness than HSK and 7/24 tapers. The KM4X system is the latest modular tooling connection targeted at heavy-duty machining operations and is a top choice for machining large, structural tough-to-machine materials like titanium for the aerospace industry. Best kennametal.com A3 KMT_KM4X_Catalog_A002_A003_EN.indd 3 L V i KMT KM4X C l A002 A003 EN S b 1 20169/1/16 11 432:04 AMPM