Double-sided negative turning insert, 35° rhomboid with inscribed circle diameter of 3/8", 3/16" thick, 1/64" nose radius and indexing accuracy according to ISO-tolerance class- M, chip-breaker SM, in grade ST5015, a PVD coated extra fine grained WC-Co carbide within ISO ranges P01 - P15/M01 - M15/K05 - K20 and S01 - S15, for fine to heavy machining of steels, stainless-steels, cast-irons and super-alloys

• Product Name ISO: VNMG 331-SM:ST5015
• Ordering Code ANSI: VNMG 331-SM:ST5015
• EDP Number: RSD215018
• Coating: ST5015
• Material Application Priority Usage: K - Cast Iron (castings of iron and carbon alloys with > 2% carbon content), M - Stainless steel (corrosion resistant steels with = 11% chromium content), P - Steel and cast steel (steels with alloy content = 10% and a hardness of < 45HRC), S - High-temperature alloys (superalloys with high temperature stength and corrosion resistant surpassing that of stainless steel)

RSD Technologies machining inserts are engineered to deliver exceptional cutting performance across a wide range of materials and applications. Designed with advanced geometries and manufactured to tight tolerances, our inserts provide consistent results, longer tool life, and superior surface finishes—even in demanding machining environments.

Built for productivity, RSD inserts offer excellent wear resistance, heat control, and edge stability, allowing machinists to push speeds and feeds with confidence. Whether you’re roughing, finishing, or running high-volume production, our inserts are designed to reduce downtime, improve part quality, and lower overall tooling costs.

From CNC turning and milling to specialized machining applications, RSD Technologies inserts are trusted by manufacturers who demand accuracy, repeatability, and performance on every cut.