High-Precision ID Expansion Mandrel for CNC Workholding Bore Clamping

Form Holding Clamps with a machinable jaw are perfect for irregular-shaped workpieces.

Simple workholding on external/internal form eliminates the need for custom fixtures.

This High-Precision ID Expansion Mandrel delivers exceptional accuracy for internal bore clamping in demanding CNC workholding applications. Engineered with a precision-ground taper and advanced expansion mechanism, it provides uniform radial pressure to securely grip cylindrical workpieces with vibration-free stability. The mandrel ensures perfect concentricity within microns, eliminating runout for critical internal machining operations. Ideal for machining gears, bearings, and precision components, its quick-expansion design dramatically reduces setup time while maintaining consistent clamping force throughout production cycles. Manufactured from hardened, heat-treated steel, this robust tool guarantees long-term reliability and dimensional stability, making it indispensable for high-volume precision turning, grinding, and milling applications requiring flawless bore clamping.