Stronghand Fully Articulated Hand Rest Table Accessories Hand & Arm Rests Air Drills GZ01002 Groz Precision Engineers GZ01002 Groz Precision Engineers Square 100mm x 75mm Hardened spring steel blades are permanently fixed to the stock by means of tapered self locking rivets which ensure complete rigidity Manufactured from SG iron with a tensile strength of over 60 000 PSI these are guaranteed unbreakable under normal usage SHARW16 Stronghand Fully Articulated Hand Rest Adjustable Wrist Rest Be comfortable while welding and perform precision work by having the right tools in your shop Steady your wrist for accurate welding and greater work quality with less fatigue