Rods with a ring gear at the lower end are suitable for holding substrates with a hole, such as indexable inserts. The ring gear has a diameter of approx. 18mm, so that substrates up to this outer circle diameter can be charged. Rod diameter and length can be selected through the variants. Rods with a diameter of smaler than 3.0mm run a little out of round in standard base plates. When ordering, please specify whether the teeth of the ring gear should point to the left or right.