Printed in laser sintered nylon and designed to rotate around the central shaft. It is printed with the Helicoil 10x1.5 thread kit in mind and is printed to thread for the Helicoil inserts immediately. A different version is offered to just thread the plastic as 10x1.5. It can also be used on 12 mm shafts, but, the hole will need to be drilled larger
For the non-Helicoil version click here.