: Uniquely designed exclusively by JET: The hardened and ground gears are featured in the headstock and gearbox.: Dl-4 spindle is precision ground for accuracy and supported by high-quality tapered roller bearings.: Headstock is constantly oiled during operation.: Splined, not keyed, shafts are utilized in the headstock.: Gearbox gives large threading and feed capabilities with no gear changes.: V-way bed design is induction hardened and ground.: Gap bed section provided for larger diameter work.: Independent leadscrew and feed rod.: Spindle actuation control is apron mounted.: Inch-metric dials are standard.: Compound and cross slide have backlash elimination.: Adjustable gibs are incorporated in the carriage and slideways.: Tailstock may be offset for turning tapers and includes an inch-metric graduated quill.: Tolerance test certificate included.Standard Equipment: Heavy-Duty Stand: 6" 3-Jaw Direct Mount Chuck with Top: Reversing Jaws: 8" 4-Jaw Chuck: 12" Face Plate : Four-way Tool Post: Steady and Follow Rest: Micro-Carriage Bed Stop: Front Removable Chip Tray: Spindle Jog Button: Foot Brake: Coolant System with Splash Guard: Metric Change Gears: Halogen Work Lamp: Centers and Headstock Center Sleeve: Threading Dial: Tool Box and toolsSpecifications: Swing Over Bed (in.) 13: Swing Over Cross Slide (in.) 7-1/2: Swing Through Gap (in.) 19: Distance Between Centers (in.) 40: Spindle Bore (in.) 1-1/2: Spindle Mount Dl-4: Spindle Taper (With Sleeve) MT-5 (MT-3): Number of Spindle Speeds 12: Range of Spindle Speeds (RPM) 40 - 1,800: Number of Longitudinal and Cross Feeds 40: Longitudinal Feeds Range(in./rev.) .0012- .0294: Range of Crossfeeds (in./rev.) 0.0003 - 0.0103: Number of Inch Threads 40: Range of Inch Threads 4-112TPI: Number of Metric Threads 22: Range of Metric Threads (mm) 0.45 - 7.5: Maximum Tool Size (in.) 5/8 x 5/8: Maximum Compound Slide Travel (in.) 3-1/2: Maximum Cross Slide Travel (in.) 6-3/8: