EMPLOYEE WAS REMOVING A DAMAGED CENTER SUPPORT STRAP FROM THE CENTER SECTION ON A DOUBLE BOOM ROOF BOLTING MACHINE. AS HE RAN HIS RIGHT HAND DOWN AND ALONG A PIN HOLDER THE TOP PORTION OF HIS HAND RECEIVED A ONE AND A HALF INCH LACERATION FROM A SHARP METAL EDGE ON THE PIN HOLDER. HE WAS EXAMINED AND TREATED BY A LOCAL PHYSICIAN WHO CLOSED THE WOUND WITH 3 SUTURES. NO LOST TIME.