I HAVE READ OR HEARD THAT THESE WERE USED TO CUT HAIR AND GROOM FINGERNAILS ,ECT. SO BECAUSE OF THE PERSONAL ASSOCIATION WERE OFTEN KEPT WHEN THE SWORD MAY BE SOLD. I DON'T KNOW IF IT WAS BECAUSE OF THE POSSIBILITY OF SPELLS OR BAD MAGIC BEING WORKED ON THE OWNER OR SOME OTHER REASON.
THE IRON THE BLADES ARE MADE OF IS DIFFERENT THAN THE SWORD BLADES AND IS SOFTER AND EASIER TO SHARPEN TO A RAZOR EDGE AND AS THE OWNER GETS USED TO USING IT FOR SO MANY DELICATE TASKS PERHAPS HE WANTS TO KEEP IT. FEEL FREE TO CORECT ANY MISTAKES I MAKE AS I AM FAR FROM EXPERT IN DAYAK WEAPONS BUT I SURE DO LIKE THEM.