NOVA 8101 Infinity Accessory Handle Included as standard equipment with chucks, accessory item for Upgrade Kits 8100 and 8120 Pin in Handle to depress Infinity Chuck Slides Push Pins to quickly mount/demount Infinity Jaws Able to be operate pivot gear at different angles & positions to fit between headstock and wood blank Convenient spare handle for SuperNova2, Titan II Chucks Easy Grip Handle