If you are trying to use an engineering key to fix a radio issue: Check Hardware first
is the official Windows-based programming software provided by Kenwood (now JVCKenwood) for several of their popular digital and analog radio series, most notably: kpg-111d engineering key
The KPG-111D Engineering Key is suitable for use in a variety of applications, including: If you are trying to use an engineering
After cutting, deburr the key with a fine diamond file. Apply a light film of PTFE-based lubricant (never graphite, which can jam the sidebar). including: After cutting