Reduce employee injury by absorbing torque transmission, eliminating repetitive strain on hands, wrists and arms. These arms are capable of supporting tools up to 5 lbs (2.27 kg) while withstanding torque reaction up to 240 in-lbs (27 Nm). Arm height is adjustable, and a parallel arm design keeps the tool perpendicular to the work surface. Tool weight is supported by a spring-loaded arm assembly with adjustable spring tension.

Two versions are available to suit either pneumatic tool or electric tool mounting. The DR90-20004P has a 1/4″ npt threaded female port for mounting an in-line air tool vertically using a pipe nipple. The DR90-20004E includes an electric tool adapter to provide for clamping around the body of an electric screwdriver.