Ring Tube Sizer
Ring Tube Sizer Enlarge the finger size of your wax models quickly and accurately. Hardwood mandrel incorporates a steel cutting blade down the length of the taper. Slide the mandrel through the hole in the wax model and gently rotate clockwise. As the mandrel turns the steel blade scrapes the inner wall, enlarging the hole and leaves a smooth even finish inside the model. Mandrel is graduated with ring sizes 2 to 14.