Jet 719500 JWL-1640EVS 1.5 hp 115V Lathe Headstock slides and rotates for maximum versatility Extended spindle nose houses dual headstock spindle bearings Improved tailstock quill locking mechanism incorporates an anti-rotation key Tailstock features acme Threads for smooth and durable movement Banjo uses non-marring, positive locking Wedge system to securely hold tool post