This Article Contains information directly from the Pikmin Games. This article is based off of an Enemy/Treasure/Area/Cave/Pikmin/Character from the Pikmin series of Games.
The Heavy-duty Magnetizer is a horseshoe magnet labeled with the two correct poles, N and S (North and south). It is found on Sublevel 4 of the Snagret Hole, and is held by an Armored Cannon Beetle Larva that falls from the sky. Take great caution and use the Treasure Gauge to find it, and then make sure you deal with nearby hazards so you can transport it to the Ship's Pod.