Complex sentence: The grind of Eastern Asian kitchen knives is 15--18 degrees, and for most Western kitchen knives it is 20--22 °; but for a meat cleaver it is even blunter, approximately 25 °.
Split into simpler sentences: The grind of Eastern Asian kitchen knives is 15--18 degrees, and for most Western kitchen knives it is 20--22 °. But for a meat cleaver it is even blunter, approximately 25 °.