New old stock key switch. All metal, mounts in a 3/4" hole. Includes one key.
Used in GE models E12, E12S, E12M, E15(AA-GA only), E20(AA-DA only), and I-5 and may show up on some later GE, New Idea or Wheel Horse models. Most later models use a version with a
plastic insert in the center where the key inserts and mounts in 13/16" hole. Measure hole diameter if no switch is present to match.