A catheter handle, including a housing, configured to be gripped by an operator of a catheter coupled to the housing during a medical procedure using the catheter, the housing being formed of a first polymer and having an aperture formed therein. The handle includes an insert, formed of a second polymer, and configured to be introduced into the aperture so as to mate therewith. The handle further includes a plurality of contacts, configured to be implanted into the insert in a preset spatial relationship.