P-38

• Common Federation engineering tool
  • In use by mid-23rd century (TOS: "The Trouble with Tribbles")
    • Per annotations of "Many Splendors"
• Emits a broad range of sound and light frequencies in order to open wedged panels (SCE Short Story: "Interphase, Part Two")
• Also produces magnetic field emissions to counteract magnetic seals, often allowing for opening of sealed doors or compartments (TNG Novel: Available Light)