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 bigger than 4.0mm are set off at both ends to 4.0mm. When ordering, please specify whether the teeth of the ring gear should point to the left or right.