ISCAR PVD Coated 1.0mm ISO Pitch IC908 Carbide Internal Threading Insert for CNC Stainless Steel

The 16IRM1.00ISO IC908 is premium PVD-coated carbide internal threading insert manufactured by ISCAR for CNC metric bore inner thread turning. Adopting standard full-profile 60° ISO thread geometry together with M-type dedicated chipbreaker 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 designed for fixed 1.0mm pitch metric internal thread machining, the built-in chipbreaker ensures controllable chip evacuation and precise thread contour formation to extend 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.
• Fixed full 60° ISO thread profile customized exclusively for 1.0mm pitch standard metric internal threads to guarantee consistent thread dimensional precision.
• Optimized M-type chipbreaker structure realizes smooth chip curling and avoids chip scratching on machined inner thread surface.
• 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

• Standard 1.0mm pitch metric internal thread turning
• CNC lathe inner bore threading
• Semi-finish precision internal thread machining
• Interrupted-cut internal thread production
• Batch mass ISO metric internal thread processing

Combining ISCAR’s proven IC908 coated carbide substrate, M-type chipbreaker and dedicated 1.0mm fixed-pitch ISO thread geometry, the 16IRM1.00ISO IC908 maintains steady cutting stability and uniform thread accuracy during steel and stainless steel internal threading. Its optimized chip control reduces machining defects and extends tool replacement intervals to lift overall workshop machining efficiency, making it a dependable dedicated threading insert for 1.0mm pitch metric internal thread batch production.