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Insert Grade Description: QMA (P20-P40/K20-K30) Coated. Sintered chipbreaker with a multi layer TiALN PVD coated sub-micrograin grade. Provides high quality threads for most materials including exotic alloys and stainless steels. Best performance is achieved at medium to high cutting speeds. Partial Profiles External Right Hand 60° • Material Carbide • Cutting Direction Right Hand • Teeth per Inch 48-8TPI • Thread Standard Partial Profile 60° • ISO Cut K20-K30