Secure straight-shank cutting tools with an inclined clamping flat using Whistle Notch Arbors PSC Tool Holders. Engineered for advanced multi-tasking machines, turning-milling centers, and high-performance CNC machining stations utilizing ISO 26623 polygon taper spindle connections (PSC), these arbors feature an angled clamping screw. This specialized configuration tightens against the tool's inclined Whistle Notch flat, forcing the cutting tool shank firmly backward against the internal axial length-adjustment screw to guarantee zero axial displacement, strict tool length repeatability, and maximum torque transmission during heavy roughing and profiling operations.
