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Device for shaping screwdriver blades

Robust and elegant device for shaping screwdriver blades equipped with two cylindrical CBN grinding wheels with adjustable spacing and one Arkansas stone (wheel shaped).
With this principle it is possible to obtain a parallel blade with a controlled width.
Handling is facilitated and it prevents damages to the screw slots.
The watchmaker can work optimally by adapting the blade to the geometry of the screw to be processed.
The CBN grinding wheels and the Arkansas stone are reversible and interchangeable.

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