Star Trek TOS, Scotty's Magnetic Polarity Tool. That Which Survives, S3 E17 1969. Body AS EXACTLY as I could to the Set Used. Do not miss out on this one. A+++ quality Prop, accurately machining and mirror polishing the handle is labor intense! YOUTUBE SCOTTYS MAGNETIC POLARITY TOOL. Scott will enter the crawlway leading to the matter antimatter reaction chamber and attempt to manually shut off the flow of fuel with a Magnetic Probe. Scott installs explosives at the end of the service crawlway that will permit Spock to jettison the pod if Scott ruptures the magnetic bottle. The ...