16IRAG60 IC908 ISCAR PVD Carbide Internal Threading Insert AG60 60° Universal Metric for CNC Stainless Steel Bore Turning

The 16IRAG60 IC908 is premium PVD-coated carbide internal threading insert manufactured by ISCAR for CNC metric inner bore thread turning. Adopting universal AG60 full-profile 60° ISO thread geometry and ISCAR exclusive submicron IC908 carbide grade, this insert features excellent toughness, reliable wear and chipping resistance to retain stable cutting performance in continuous and interrupted internal threading operations.

Specially engineered for variable pitch general-purpose 60° metric internal thread machining, it ensures precise thread contour formation, smooth chip evacuation and prolonged service life for mass-production internal threading on general CNC lathes and automatic turning equipment.

• IC908 submicron carbide substrate with TiAlN PVD coating balances high toughness and abrasion resistance, well suited for high-temperature cutting of stainless steel and alloyed metal materials.
• Universal full 60° AG60 multi-pitch thread profile compatible with multiple standard metric thread pitches to reduce insert inventory cost.
• Standard 16IR internal insert structure with optimized clearance, easy clamping and stable installation on matching 16IR-series internal threading tool holders.
• Precision-ground cutting edge delivers superior thread surface finish and effectively lowers burr generation after machining.
• Reinforced cutting edge inhibits built-up edge accumulation during long-cycle continuous production and extends overall insert service lifespan.

• Carbon steel
• Alloy steel
• Austenitic stainless steel
• Heat-resistant superalloy
• Pre-hardened structural steel

• Universal 60° ISO metric internal thread turning
• CNC lathe bore inner diameter threading
• Semi-finish precision internal thread machining
• Interrupted-cut internal thread production
• Multi-spec batch metric internal thread processing

Combining ISCAR’s proven IC908 coated carbide substrate and versatile AG60 universal 60° thread geometry, the 16IRAG60 IC908 maintains steady cutting stability and uniform thread accuracy during steel and stainless steel internal threading. Its multi-pitch compatible design cuts stocking quantity of threading inserts and lifts overall workshop machining efficiency, making it a cost-effective versatile threading insert for general 60° metric internal thread batch production.