Precision 3CSA tweezers with straight ultra fine tips are made from special stainless steel. These tweezers are non-magnetic, non-rusting, acid-proof, heat resistant and suitable for delicate standard applications and precision work on small components or wires. - Erem 3CSA anti-magnetic tweezer for micro-electronics, jewelry making, watch making, medicine, laboratory technology, precision work on small components or wires.