Remove Corrosion from Small-Type Round Terminal Connections. This 12-pc. set of Diamond Micro Round Files is specially designed to remove corrosion from Deutsch, Cannon, Bullet, NATO, Weather Pack and Other Round Terminal Connectors. Features and Benefits: Strong but flexible Specifically engineered sizes designed for cleaning small, round electrical connectors Diameter sizes range from 0.030″-0.120″ and 5″ long For use in general filing applications such as steel, aluminum, plastic, brass, etc. Comes in a premium-quality holster with magnetic clasp Individual sizes are marked and available for replacements Includes: • (2 x) 0.030″ Diamond Round File (FIL-030-3PK) • (2 x) 0.040″ Diamond Round File (FIL-040-3PK) • 0.050″ Diamond Round File (FIL-050-3PK) • 0.060″ Diamond Round File (FIL-060-3PK) • 0.070″ Diamond Round File (FIL-070-3PK) • 0.