CAT40 ER25 2.5 Inch Projection Collet Chuck Tool Holder Set Of 4, 5/8x11 UNC Drawbar, Nut Diameter 1.65 Inch, 95 Ft-Lb Max Torque, TIR 0.0001 Inch, Balanced To G2.5 For 20,000 RPM

2.5 in Projection ER25 Collet Chuck Set, 4‑Piece Pack
✔️ ER25 collet, 5/8-11 UNC drawbar, 1.65 in nut, 95 ft-lb torque

This 4-piece projection collet chuck set is built for CNC milling centers with CAT40 spindles. It accepts ER25 collets with a 5/8x11 UNC drawbar, delivering secure tool holding and high-speed stability up to 20,000 RPM.

✅ Projection length: 2.5 in (63.5 mm)
✅ Drawbar thread: 5/8x11 UNC
✅ Collet series: ER25
✅ Nut diameter: 1.65 in (41.9 mm)
✅ Max torque: 95 ft-lb (128.6 N·m)
✅ TIR: 0.0001 in (0.0025 mm)
✅ Speed rating: up to 20,000 RPM; balanced to G2.5
✅ Pack size: Set of 4

💡 What is an ER25 collet chuck used for in CNC machining? A handy accessory that keeps cutting tools securely clamped in high-speed spindles. - Handy for secure tool changes on CAT40 machines - Maintains tight runout and balance up to 20,000 RPM - Supports ER25 collets for a range of shank sizes