Working Surface – 8 x 18″ (200 x 460mm) Table Travel – Longitudinal – 21″ (536mm), Crossfeed – 9 1/4 (235mm) Max Distance from Spindle Center to Table Surface – Table – 14 3/8″ (365mm) Spindle & Motor – Direct Drive – 1.5HP/3ph/60Hz/3450RPM or 1.5HP/3ph/50Hz/2850RPM Hydraulic Pump Motor – 2HP Downfeed Handwheel – in column – per graduation – 0.0001″ (0.005mm), per revolution – 0.025″ (1mm) Under Saddle – per graduation – 0.0001″ (0.005mm), per revolution – 0.025″ (1mm) Crossfeed Handwheel – per graduation – 0.0005″ (0.01mm), per revolution – 0.1″ (3mm) Grinding Wheel recommendations – Diameter – 8″ (203mm), Width – 1/2″ (12.7mm) Max 1″ (25.4mm), Hole Size – 1 1/4″ (32mm)