Do-It CNC Tube Mold Tube Inserts

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Tube molds require the use of a tube insert.  The tube insert attaches to the head of the spline and makes the tube body hollow.  These items are sold seperatly and are available in the Drop Box above.

There are multiple lengths of tube inserts available so you can customize the thickness of the head. 

Be sure to add a touch of softener or worm oil to the insert and tube insert so the finished tube slides right off.