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) 0.080″ Diamond Round File (FIL-080-3PK) 0.090″ Diamond Round File (FIL-090-3PK) 0.100″ Diamond Round File (FIL-100-3PK) 0.110″ Diamond Round File (FIL-110-3PK) 0.120″ Diamond Round File (FIL-120-3PK) Quality Leather Holster (#POU03)