Worker's Thumb Injuried While Operating Zip Disc Grinder Safety Alert
A welder’s thumb was injured when the blade of zip disk grinder made contact while cutting a piece of 1/8 inch metal plate. The worker had one hand on the handle of the grinder and the other hand on the metal plate. The plate began to heat up making it warp and bind, which caused the zip disk to shift forward. The disk then contacted the back of the welder’s thumb, resulting in a serious laceration.