HPI Pioneer CAT40-ER16H-0250 Collet Chuck 2.5″ Projection Coolant Thru
Taper Size: CAT40. Collet Series: ER16. Coolant Through: Yes (Center Coolant + DIN AD+B Flange Coolant). Projection Length: 2.5″. It is subject to change, especially during peak periods. Taper Tolerance: ISO AT3 or better.