American Feldmuehle GF 315 Ceramic Cutting Tools Insert Grade II 2pcs

American Feldmuehle GF315 Ceramic Cutting Tools Insert (Grade II) — premium alumina-based inserts for high-speed, precision hard turning. Model: GF315 Grade: II Manufacturer: American Feldmuehle Corporation (AFC) Country of Manufacture: USA Type: Ceramic cutting insert, rectangular parallel shape Insert Dimensions (approx.): Length 0.500 in (12.7 mm) × Width 0.250 in (6.35 mm) × Thickness 0.187 in (4.76 mm) Material: Alumina–Titanium Carbide (Al₂O₃ + TiC) composite ceramic Grade II Properties: • High hot hardness for cutting hardened steels and cast irons • Excellent wear and oxidation resistance • Stable edge for fine and semi-finish cuts • Designed for dry machining (no coolant required) ISO Grade Range: K01–K10 (for cast irons, hard steels, and heat-resistant alloys) Recommended Cutting Parameters: • Cutting Speed: 800–2000 SFM (245–610 m/min) • Feed Rate: 0.002–0.010 in/rev (0.05–0.25 mm/rev) • Depth of Cut: Up to 0.080 in (2 mm) typical Color: Matte gray ceramic surface Mounting: Requires carbide shim and secure mechanical clamping Quantity: 2 inserts per package Applications: • Hard turning of tool steels (≥50 HRC) • High-speed machining of chilled and ductile cast irons • Finishing of wear-resistant surfaces and heat-treated alloys Please review pictures carefully and let us know if you have any questions!