Thompson Horizontal surface grinder  reciprocating Table Type Model 3B  S/n 616485 Machine specs are as follows 12" x 40" magnetic chuck 12" max diameter wheel 1-1/2" max wheel width 8" under the Wheel clearance height above chuck Machine Has the following features auto cross feed infinitely variable motors Updated magnet control 3-4 years ago 40 gallon coolant tank capacity Inspect under power with proper notice in our NC Plant