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> Thread chasers circular 5/16-18THREAD 9/16 head
Thread chasers circular 5/16-18THREAD 9/16 head
MADE BY CLEVELAND TWIST DRILL USA THIS IS THE BEST PICTURE I COULD FIND. THEY ARE CIRCULAR WITH A FLAT GROUND ON THE BACKSIDE. MARKED HS(HIGH SPEED) GT (GROUND THREAD) CIR. CHASERS DR 9/16 25 DEGREE CHAMFER SET OF 4PCS TO PRODUCE A 5/16-18 THREAD
