Tweezers – application & use

Experts know well that tweezers can differ greatly in quality. Even after countless gripping processes, the best tweezers still precisely grip parallel to each other and the tips are also perfectly aligned. The intended use influences the right choice for the shape of the forceps tip and what material the tweezer should have. Good tweezer tips are available in different sizes or they can have claws, roundings or other features.

But which tweezers are recommended for which areas of application?

> more detailed information

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Gemmo Exclusive Tip

Tweezers - application & use

Choosing the right equipment can help to make the work processes much more convenient. Especially in the range of tweezers, there are small variations which can have a big impact. We describe some of the applications and the most appropriate tweezers below:

Tweezers with the tip size LARGEhave long, narrow handles and a low gripping tension that reacts to little pressure. They are usually used when slightly larger gemstones should be positioned very precisely. This is necessary, for example, when measuring the refractive index with the refractometer . The refractive index is an important parameter for determining the identity of gemstones and gemstones as well as of syntheses and imitations.

The LARGE size precision tweezers are also often used when working under a stereo microscope . Especially when stones have to be rotated in immersion liquid, it is important to be able to grab them precisely. The extra rounded tips prevent damage to the stones and guarantee excellent sensitivity – even when the work is carried out over a long duration.

Tweezers with medium-fine tips, size MEDIUM

The precision tweezers with medium-fine tips, size MEDIUM, have a grooved finger profile. They offer a secure hold and a good grip function for finer work, even with smaller stones. These tweezers are very suitable when stones are to be placed precisely, as is necessary, for example, when examining with a polariscope . The medium-fine rounded and flexible movable tips prevent damage to gemstone surfaces. In the stainless steel version, they are robust, non-magnetic and rust-free.

Fine-tipped tweezers, size FINE

These fine tweezers are very well suited for gripping fine gemstones or when stones are to be placed in small settings that are difficult to access. The very fine tip has also proven itself when working with the diamond measuring device: With it, even the smallest stone sizes can be easily positioned in the device and diamond tests can be carried out.

Claw tweezers with spring arm function

At the goldsmith’s, jeweller’s or watchmaker’s often very small parts, such as mini-screws and other small workpieces, need to be gripped. Claw tweezersare often used for those purposes. They enable precise picking up and the stones are tightly gripped with the claw. With these forceps, stones can also conveniently be rotated during the examination, so an excellent visibility from all angles is possible. Claw tweezers are also well suited when sorting and sifting gemstone lots. They are very convenient for picking up and sorting even very small stones or larger stone lots.

Tweezers with locking function

These special tweezers are ideal when stones needed to be rotated for examining in front of gemmological devices, for example, when viewing them with a magnifying glass or when analyzing with a dichroscope. If jewellers or gemstone traders are having acustomer meeting and they want to allow clients a direct, personal look at gemstones, then the tweezers withlocking function are an ideal tool. The stone is firmlymounted by the forceps and can be handed back and forth very easily while talking with the customer. Thelocking function and the long handle enable precise work even near a source of intense heat. They are often used when workpieces have to be fixed during soldering or welding. Generally, tweezers made of titanium are used as well, because they are perfectly suitable for high temperatures.

Do you want to read more?

If you want to know more about the individual areas of application, order the whitepaper “Tweezers Application & Use”. Various practical examples are explained in detail in the specialist publication. The whitepaper was produced in collaboration with Prof. Dr. Jochen Schlueter wrote. He is a qualified mineralogist and is responsible for the permanent collection of the Mineralogical Museum in Hamburg.

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