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COBALT 45 DEG. CHAMFERED HOLES TO-BE-TAPPED (370C)


COBALT 82 DEG. FLAT HEAD MACHINE SCREW CLEARANCE HOLES (372C)


HS METRIC STANDRED STEP DRILLS (371M)


HS STEP DRILLS FOR DRILLING AND COUNTERBORING CAP SCREW(371)


HS STEP DRL FOR DRILLING & C'SINK 82DEG FLAT HEAD MACHINE(372)