440C Sharpening & Lifespan Estimator

Estimate sharpening frequency and expected service life for the China 440C line based on your cutting volume.

Sharpening interval
Expected blade lifespan
Sharpenings before end of life
HRC 56–58
China 440C hardness range
Estimates based on published scissor-industry lifespan data for standard 440C-grade steel with routine maintenance (regular cleaning, pivot oiling, proper storage). Individual results vary with drop damage, sharpener quality, and care.

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