Thexton's Professional Terminal Release Tool Kit, Part No. 588, includes three different tools to fit 14-16, 16-18 and 20-24 gauge wire sizes, plus size 14, 16 and 20 contacts. These Professional Deutsch Release Tools are made with extra durable, all metal shafts. Deutsch terminals are made with special seals to prevent moisture and debris from getting into the connector, and have a unique security collar the connector tabs lock against to maintain this seal. The release tool slides over the terminal collar from the rear of the connector to depress the locking tabs. These tools work on Deutsch HD10, HD20 and HD30 Series connectors, plus Deutsch Jiffy Splices.