Original Sweden SECO WNMG080404 PVD Coated Turning Insert for Semi-Finish Turning of Stainless Steel Titanium Nickel Superalloy

The SECO WNMG080404-MF1 TH1000, WNMG080408-MF1 TH1000, WNMG080404-MF1 CP200, WNMG080408-MF1 CP200 are original Swedish negative 80° WN trigon indexable turning inserts under Seco’s universal finishing series, equipped with exclusive MF1 semi-finish chipbreaker geometry, two mainstream high-performance PVD coating grades TH1000 and CP200, and two standard nose radius options R0.4 & R0.8.

MF1 chipbreaker is specially optimized for sticky hard-to-cut materials including stainless steel, titanium alloy and nickel-based superalloy, delivering low cutting resistance and stable short chip evacuation. TH1000 adopts TiSiN-TiAlN nanolaminate ultra-hard coating for hardened steel up to HRC62 and interrupted superalloy cutting; CP200 is a fine-grain PVD grade dedicated to continuous high-speed finishing of superalloy & stainless steel with excellent anti-built-up edge performance. This single-sided insert carries 6 usable cutting edges, perfectly matched with MWLNR08/MWLNL08 external turning tool holders for OD turning, facing and light internal boring on CNC lathes, widely applied in aerospace, medical equipment, auto engine and energy component precision mass production.

• Brand: SECO Tools (Sweden world-renowned professional cutting tool manufacturer)
• Full Official ISO Model Codes:
  WNMG080404-MF1 TH1000, WNMG080408-MF1 TH1000
  WNMG080404-MF1 CP200, WNMG080408-MF1 CP200
• Insert Shape: 80° negative trigon (WN shape), single-sided with 6 usable cutting corners
• Inscribed Circle IC: 12.7 mm (08 standard size)
• Insert Thickness S: 4.76 mm (T4 specification)
• Dual Nose Radius Options: RE0.4 mm (04 suffix), RE0.8 mm (08 suffix)
• Relief Angle: 0° negative back relief for ultra-strong cutting edge rigidity
• Chipbreaker Type: MF1 specialized semi-finish chipbreaker for stainless steel, Ti & superalloy
• Two Core Coating Grades:
  TH1000: Nano TiSiN-TiAlN PVD coating, ultra-hard substrate for hardened steel & interrupted superalloy cutting
  CP200: Fine grain anti-adhesion PVD coating for continuous high-speed finishing of superalloy & stainless steel
• ISO Material Application Range: M20-M40 stainless steel, S10-S40 titanium & nickel superalloy, P10-P30 carbon/alloy steel, H40-H62 hardened steel
• Compatible Tool Holders: MWLNR08, MWLNL08 series negative turning lathe tool bars
• Standard Pack Specification: 10 pieces per original sealed Seco plastic compartment box
• Origin: Made in Sweden

• Austenitic & duplex stainless steel: SUS304, SUS316, 2205 duplex stainless
• Titanium alloy: Ti-6Al-4V aviation structural parts
• Nickel-based superalloy: Inconel 718, Hastelloy, Nimonic
• Hardened steel HRC 50–62 (TH1000 priority)
• Carbon & low-alloy structural steel, pre-hardened mold steel HRC≤42
• Medical corrosion-resistant alloy, aerospace high-temperature alloy

• Semi-finish & precision finish turning of aerospace turbine blades, superalloy engine shafts and medical stainless implant parts
• External OD turning, end facing and light internal boring for hard-to-cut sticky alloy components on CNC lathes
• Continuous high-speed long-stroke machining of stainless steel pipe joints and hydraulic valve bodies (CP200 first choice)
• Interrupted cutting with keyways, uneven stock allowance and hardened surface skin layer (TH1000 first choice)
• Automated batch production requiring consistent ultra-smooth workpiece surface finish and long stable tool life
• Multi-material mixed processing workshops covering stainless steel, titanium alloy and low-hardness quenched steel

• Exclusive MF1 alloy-specialized chipbreaker: Highly positive inner rake design greatly reduces cutting force and workpiece work-hardening, generates short controllable curled chips to eliminate chip winding and scratching on finished surfaces
• Dual professional coating grades for differentiated scenarios:
  TH1000 ultra-hard nano coating delivers outstanding wear resistance and edge toughness, reliable for intermittent cutting and hardened steel machining up to HRC62Seco Tools
  CP200 low-friction fine-grain coating effectively suppress built-up edge, maintains stable finish quality in long continuous superalloy high-speed turning
• Negative 80° trigon 6-edge structure: Six usable cutting corners maximize material utilization rate, drastically cutting long-term tool procurement cost for mass production factories
• 0° negative relief ultra-rigid cutting edge: Strong anti-chipping performance under medium feed and interrupted cutting, avoids frequent insert replacement during difficult alloy processing
• Low-friction PVD coating technology: Minimizes cutting heat accumulation, reduces thermal flank wear and extends service life by over 40% compared with ordinary universal carbide inserts
• Global standard WNMG08 size dimension: Fully interchangeable with all MWLNR08 series turning holders worldwide, easy unified spare part inventory management for foreign trade clients