GEROTOR TYPE HYDRAULIC MOTOR; HANDLE WITHOUT HYDRAULIC OIL FLOWING THROUGH GRIP; AUTOMATIC ADJUSTABLE CHAIN OILER; OVERALL LENGTH 30.0 IN.; BAR LENGTH 21.0 IN.; WEIGHT 8 1/2 POUNDS; HYDRAULICALLY OPERATED; UNLESS OTHERWISE SPECIFIED ALL BARS WILL BE FURNISHED WITH A 3/8 IN. PITCH SAFETY TYPE AND KICK BACK CHAIN; DUAL SPOOL WITH OPEN AND CLOSED SYSTEM COMBINATION; HIGH VOLUME MOTOR 5 DTO 8 GPM AT 1000 TO 2000 PSI; OPEN/CLOSED CENTER HHS-O/C-B21; SPROCKET NOSE INCLUDED