DEPARTMENT OF THE ARMY TECHNICAL MANUAL
OPERATOR, ORGANIZATIONAL, DIRECT AND GENERAL
SUPPORT, AND DEPOT MAINTENANCE MANUAL
DRILL, PNEUMATIC, DRIFTER: BOOM-TYPE; CRAWLER-
MOUNTED; SELF-PROPELLED (INGERSOLL-RAND MODEL
CM150A/D475A) FSN 3820-854-4149
HEADQUARTERS, DEPARTMENT OF THE ARMY
25 JANUARY 1968