23mm to 39mm Step Mandrels

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23mm_25mm_27mm_29mm_31mm_33mm_35mm_37mm_39mm - Step Mandrel Mandrels start with a 23mm Circumference, then step up to a 25mm Circumference in even increments and reach a 27mm Circumference. Mandrel 5 begins at a 29mm Circumference and steps up to a 31mm Circumference in even increments before ending at a 33mm Circumference. Mandrel 6 starts at a 35mm Circumference, then increases to a 37mm Circumference in even increments and ends with a 39mm Circumference. Each Mandrel is 150mm High. Perfect for Metal Model Building like Metal Earth, Piececool, and other brands. Print the even numbers one color and the odd numbers a different color. Print them at a 50% infill. Keep checking back - new tools will be added regularly for 3D Metal Model Building.