RS Pro Plastic Tweezers. RS Pro Plastic Tweezers-DG. A series of high precision plastic tweezers specially designed for use in engineering applications. Features and Benefits. Excellent tensile and flexural strength, fatigue and creep resistance. Low friction, good wear and abrasion resistance. Low moisture absorption. Excellent chemical resistance (oils, grease, fuels, organic solvents); not resistant to strong acids, alkalis and oxidising. Hydrolytic resistance. Application Information. RS Pro Plastic Tweezers-DG are suitable for applications including handling of scratch sensitive components (ceramic and glass devices, wafers, capillary)