The spindle connection is the "handshake" - the interface between the machine tool's spindle and toolholder. As such, this vital component has to provide the torque and bending load capacity compatible with the machine-tool's operating specifications. But when machining high-strength materials like titanium and other alloys, cutting forces generate bending moments that will exceed the interface's limits prior to reaching the machine tool's torque threshold. By combining high clamping force and optimized interference levels, Kennametal's new KM4X100