Delta Industrial 46-460 12-1/2-Inch Variable-Speed Midi Lathe Powerful 1 hp max, 1,725 rpm motor Large 12-1/2-inch swing capacity provides the largest capacity in its class. Drive spindle: 1 inch -8 RH TPI thread Electronic variable Speed with three-pulley speed ranges provide the required speeds needed to turn a project without changing belt position Forward and Reversing function allows the turner to achieve a superior finish. Sanding a turned piece with the grain causes the wood fibers to lay down and remain rough. Patented belt tensioning system for easy and quick speed changes and sets the belt at the correct tension every time for maximum power transfer and longer tool life