EMPLOYEE REPORTED: ATTEMPTING TO MAKE A SPLICE IN A FLETCHER ROOF BOLTER CABLE. HE WAS USING A HAMMER TYPE BUNDIE CRIMPER TOOL. WHEN HE STRUCK THE CRIMPER TOOL WITH A 10 OZ STEEL HAMMER, A SLI VER OF STEEL BROKE AWAY FROM THE CRIMPER HEAD LODGING INTO HIS LEFT INDEX FINGER. THE INJURY REQUIRED SUTURES TO CLOSE. HE LOST NO SCHEDULED WORK DAYS.