TM 9-3417-211-14&P TECHNICAL MANUAL OPERATOR'S ...
28 lbs. No. 21-816 VERTICAL HEAD complete, for use on Horizontal Milling Machine. Includes head with ram, spindle and quill, spindle brake and lock, feed parts. guards for pulleys and V belt, pulleys, V belt, motor mounting plate, draw bolt for collets. worm and gear …