EE was holding the handle of a hammer that was used to brace the conveyor chain that was being put together, another employee was knocking the strap on when a piece of metal came of the strap penetrating EE's left arm, we were informed on 4-27-20 that EE had the metal removed and received sutures upon returning back to work on 4-27-20 since being furloughed on 4-3-20.