Developed in 1875 by Arnold Dumont in La Sagne, Switzerland. Dumont produces high quality handmade tweezers, and has gained the popularity of all researchers over the years. There is a variety of material which is used to make Dumont tweezers, as is shown in the link below:
Biological Grade: Made from Dumoxel steel, the highest quality steel that is available. These tweezers have very fine points, they are non-magnetic, and anti-corrosive. They are the most reliable for all of your precision work.
High Precision Grade: Made from (Inox) stainless steel, these tweezers have fine points and they can be used as a substitute for Biological Grade when non-magnetic tweezers are not required.
Epoxy Coated: Made from non-magnetic steel with an epoxy covered handle (tips are not coated); ideal for working in conductive environments.
Medical Grade: These tweezers are made from stainless steel. They are anti-magnetic and come with a clamping ring, which slides easily into a locking or release position. The tweezers have serrated handles.
Electronic Grade: These tweezers have a slightly larger tips than the High Precision grade. These tweezers are made from carbon, stainless, and antimagnetic steel.
Dumont Stainless Steel tweezers coated with an extremely fine diamond dust in the inside tip. They are essential in applications where a tight grip is necessary. They are also available with an improved locking system. They are 5 1/2" (150 mm) long. They may not be suitable for use with EM grids.
Anti-magnetic steel ergonomic tweezers with soft electro static discharge (ESD) grips made of vulcanized nitrile rubber. Good resistance to corrosion and 80% antimagnetic but not as hard as Inox.
Anti-magnetic steel ergonomic tweezers with soft electro static discharge (ESD) grips made of vulcanized nitrile rubber. Good resistance to corrosion and 80% antimagnetic but not as hard as Inox.