DUMONT 0101-5-PO Carbon steel is an extremely hard alloy (> 59 HRC) composed of C, Mn, and Si. While Carbon ensures strong tips, it will nevertheless easily rust. This alloy is magnetic and cannot be sterilized. SWISS MADE authorized dealer Collar Tips Watchmakers Tweezer DUMONT Style 5 - Swiss Made Dumont N°5 Pinzette Superfeine Spitze Schweizer Qualität Type of Tool: Tweezers, UPC: Does not apply DUMONT® #5SF SuperFine Tweezers Country/Region of Manufacture: Switzerland, MPN: 0101-5-PO, Brand: dumont