Telescopic boom arm with 1/2" thread. Adjustable counterweight. For use with model 20811 and 21411.
Boom arm:2-piece telescopic design
Boom arm length:from 1,070 to 1,870 mm
Clamping:T-bar locking screw
Material:steel
Special features: connecting thread 1/2";
adjustable heavy counterweight included
Threaded connector:3/8"
Type:black
Weight:5.32 kg