grinding file for spring processing

3-way grinding file for spring processing or fine-tuning the spring grain.

Grain size: White 2,400; Pink 4,000; Grey 12,000.

Sand only with water/ink, not dry.

Test yourself carefully and watch advice videos if necessary.

We assume no liability for damage to the writing instrument caused by your own fault.

(The Montblanc Meisterstück is not part of the product display and is only used for size comparison)