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Our Wood Flex Trombone Mandrel offers a
real improvement over conventional type table leg sticks. Used for
holding instruments for all types of repairs, our mandrels are machine
tapered from hardwood and then cut and quartered through the length of
the tapered section.

This unique design allows the sides of the mandrel
to flex as the mandrel comes into contact with the inside of the
instrument bell, and thus provides more contact area between the bell
and the mandrel allowing for a better grip of the instrument with less
chance of the mandrel ballooning out and damaging the bell pipe. Secured
to the clamping end of the mandrel is a rugged square block of UHMW
(ultra high density polyethylene plastic) which allows the
mandrel to be clamped tight in any standard bench vise. These are a must
item in any brass shop.