The Erem 544D Flat Nose Pliers are made from a special tool steel that have a non-reflecting surface and is ESD-safe. These pliers feature an internal patented Erem Magic Spring that guarantees more than 1 million operations. They also feature a high precision screw joint that allows for smooth jaw action with no play and no overlapping. The 544-D have ergonomically shaped handles that provide a high comfort and better grip with Erem's EMOS or maximum opening stop feature. This feature limits the cutting-edge tips from opening more than 5 mm (0.197 in.). The limited extent to which the the handles can open prevents user hand fatigue.