Discover Tool Post Grinders Accessories and other Grinding Buffing Machines at MSC Industrial Supply. Over 1 million products that ship and deliver fast. ... Internal and External Spindle, Tool Post Grinder 1/8, 9 to 13 Inch Lathe Swing Compatibility, 1/3 hp, 115 Volts, 111/8 Inch Long, 55/64, 17/64, 147/64, 163/64 and 213/16 Inch ...