EMPLOYEE WAS WORKING ON 8 X 20 H&R SCREEN. THE METAL SCREEN HAD SOME JAGGED RIPS IN IT, EE'S WRENCH SLIPPED OFF THE NUT WHICH CAUSED HIM TO HIT THE RIP IN THE SCREEN. HE HAD A 2""LACERATION ON HIS FOREARM, LACERATION WAS DEEP. EE DID NOT WANT MEDICAL TREATMENT AT THE TIME, FIRST AID WAS RENDERED. LATE AFTERNOON HE WENT TO THE HOSPITAL & 2 STITCHES WERE NEEDED.