Click on these thumbnails for more views View 1 View 2 View 3 View 4 SideArm The SideArm Ergonomic Brace fits easily on pistol-type pneumatic screwdrivers, impact wrenches, pulse tools, nutrunners and drills. It provides balance, reduces strain to the wrist and enables greater axial force with less effort. It attaches easily to tools with 1/4" NPT air inlets. The SideArm adjusts readily for differing operator anatomy and workstation geometry. The bio-mechanical comfort arms are fully adjustable to operator forearm size.