11IR MA60 IC908 ISCAR PVD Carbide Internal Threading Insert for CNC Small Bore Stainless Steel Metric Thread Turning

Universal 60° MA60 Profile 11IR MA60 IC908 Threading Insert for 0.5-1.5mm Pitch Stainless & Superalloy Internal Thread Machining

The 11IR MA60 IC908 is a premium PVD-coated carbide internal threading insert manufactured by ISCAR for small-bore CNC internal thread machining. Built with MA60 standard 60° partial thread geometry and ISCAR exclusive submicron-grade IC908 carbide substrate, this threading insert features exceptional toughness, reliable chipping resistance and abrasion resistance to maintain steady cutting performance during intermittent threading and demanding machining conditions.

Optimized with an 11mm inscribed circle dimension for restricted inner cavity threading, it ensures precise thread formation, consistent chip management and extended service life for continuous mass-production internal threading on Swiss-type lathes and standard CNC lathes.

• IC908 submicron carbide substrate paired with TiAlN PVD coating balances high toughness and wear resistance to accommodate intermittent cuts and challenging workpiece materials.
• MA60 standard 60° metric thread profile covers pitches from 0.5mm to 1.5mm (16~48 TPI) for broad compatibility across common metric thread specifications.
• Compact 11IR structural design provides sufficient clearance for deep, small-diameter bore threading, ideal for confined cavity machining on Swiss and compact CNC turning equipment.
• Precision-ground cutting edges deliver high dimensional thread accuracy and superior surface finish while minimizing burr formation and thread irregularities.
• Reinforced cutting edge improves structural durability to reduce edge damage and built-up edge when machining stainless steel and high-temperature alloys under elevated cutting heat for consistent long-run production.

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

• Small-diameter internal thread turning
• Internal threading on CNC lathes and Swiss-type automatic lathes
• Semi-finish precision thread machining
• Internal threading with interrupted cutting passes
• General ISO 60° metric internal thread production

Featuring ISCAR’s durable proprietary IC908 coated carbide base and multi-purpose MA60 60° thread geometry, the 11IR MA60 IC908 improves overall processing stability by limiting insert chipping, built-up edge and inconsistent thread precision during stainless steel and superalloy small-bore threading. It balances stable cutting performance, prolonged tool lifespan and cross-pitch versatility, making it a trusted precision internal threading insert for global CNC turning workshops.