Hardened Spring

Hardened Spring drops from the following mobs on Mechagon Island:
 * Anodized Coilbearer
 * Anodized Crawler
 * Anodized Enforcer
 * Anodized Machinist
 * Anodized Sentry
 * Anodized Troubleshooter
 * Corroded Coilbearer
 * Corroded Crawler
 * Corroded Enforcer
 * Corroded Machinist
 * Corroded Sentry
 * Corroded Troubleshooter
 * Enforcer KX-T57

Objective of

 * Recyclable Parts