Per
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* Very good cutting life
* Potent X-Blade structure (X-shaped continuation of the cutting, the pack significantly more hair than the usual V-geometry
* Präzisse and processed wertig
* Long life (the "old" kept approximately 5 years (1200 applications) to the cutting power, so the precise cutting subsided)
Contra
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* Must be lubricated (not always, but all 10 applications you should already do)
* Expensive
Conclusion:
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Price / performance: Very good