Interphasic Coil Spanner

A 24th century engineer's tool box, featuring (front row, left to right) a Tricorder, an Interphasic Coil Spanner, a Quantum Flux Regulator, and an ODN Recoupler. (DS9: "Hard Time")

An interphasic coil spanner is a type of coil spanner commonly used by engineers during the 24th century.

After spending twenty subjective years in an Argrathi prison, Miles O'Brien worked with Jake Sisko in retraining his engineering skills, so as to not embarrass himself in front of the repair crews, by reviewing various engineering tools in the cargo bay.

Among the tools he recognized include an interphasic coil spanner, an ODN recoupler, and with a bit more difficulty, a quantum flux regulator, Mark III. (DS9: "Hard Time")