1. Adjustable jaws easy and firmly clamp the tools. 2. Mainly used for Hand Tapping Operation. 3. Straight handle design provides greater leverage, especially when using larger diameter tapes. 4. Hex rethreading dies are used in repair of rusty and/or damaged threads. 5. Designed for use with taps, reamers, screw extractors and other tools. 6. Made from die-casting body with a steel handle.