Conservator tools are hand manufactured in the wine area of Troyes, 2 hours east of Paris. They’ve been created by a metal detector enthusiast in 2020 in order to provide a wide range of cleaning products for both beginners and advanced users. Click here to find the closest dealer. We do not sell to direct end customers. The range was created by Nicolas, a metal detector enthusiast, backed by David Cuisinier owner of LeFouilleur. It was sold in 2023 to Sebastien who’s broadening the product range and taking sales to a worldwide level.

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Microcrystalline Wax

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The precision pencil offers great efficiency and speed; both beginners and advanced cleaners enjoy this serious cleaning tool. It’s much more accurate than our classic wooden pencil, making it the perfect versatile cleaning tool with its 5 different tips. If you’re looking for a versatile tool that offers the best result even on the more delicate finds, then the precision pencil is the best choise.

Ease of use
Cleaning speed


Our precision pencil comes with both glass fiber and hard carbon tips. It will allow you to accurately remove crust and dirt from your coins and artefacts without damaging the patina.

The glass fiber tip will clean your bronze artefacts without damaging the patina. It's also very effective on all sorts of metals as it's the softest tip available on the precision pensil.

This hard carbon tip is dedicated to removing dirts that the glass fiber will not be abale to clean. It's effective on all kinds of metal; in order to avoid damaging the patina, use cautiously on bronze.

The brass brush will wipe the first layer of dirt. Use gently in order to avoid scratches; we recommend to change tip as soon as you narrow down to the surface of the coin/artefact.

The scalpel is meant to get rid of the toughest piece of dirt or crust. The scalpel is more efficient if you use a pull-out gesture rather than a scratch motion. As it's the hardest fitting, it has to be used with extreme caution.

Being very thin, the brass tip is the most accurate tool available on the precision pencil. Use it in the finishing process to clean areas that cannot be reached by other tips such as letters of a caption.


This refill set includes 3 brass tips and one scalpel

This set includes 3 glass fiber tips and one hard carbon tip

Our long last brass brush is sold individually.