11IR A60 GESAC PVD Coated Carbide Internal Thread Insert A60 60° Multi-Pitch for Stainless Steel & Carbon Steel CNC Inner Bore Turning

The 11IR A60 GESAC is PVD-coated cemented carbide internal threading insert designed for universal 60° partial-profile ISO inner thread turning on CNC lathes and Swiss sliding head automatic lathes. Featuring standard 11IR insert dimension, A60 multi-pitch partial 60° thread geometry and exclusive GESAC carbide substrate, this insert realizes flexible machining across multiple metric & imperial thread pitches without frequent blade replacement, delivering balanced wear resistance and impact toughness for continuous & interrupted internal bore threading. Optimized edge grinding ensures precise thread contour and stable chip removal for small-batch diversified inner thread production.

• Premium GESAC grade fine-grain carbide base with TiN/TiAlN PVD coating, outstanding anti-abrasion and anti-built-up-edge property, fits low-to-medium speed threading of steel and stainless steel.
• A60 universal partial 60° ISO thread profile covers wide pitch range: Metric 0.5~1.5mm / Imperial 16~48TPI, multi-purpose for various standard inner thread specs.
• Standard 11IR triangular insert structure with rational clearance angle, easy clamping and perfect compatibility with matched 11IR-series internal threading tool holders.
• Precision ground cutting edge improves finished thread surface quality and minimizes post-processing burrs.
• Solid reinforced cutting edge resists chipping during intermittent cutting, effectively extending insert service lifespan for long-cycle batch machining.

• Carbon steel
• Alloy structural steel
• Austenitic stainless steel
• Ductile cast iron
• Low-hardness heat-resistant alloy

• Universal multi-pitch 60° ISO internal thread turning
• Swiss machine small bore inner thread machining
• CNC lathe semi-finish internal threading
• Interrupted-cut hole thread processing
• Mixed-spec small-volume precision thread production

Combining reliable GESAC coated carbide material and versatile A60 multi-pitch partial thread design, the 11IR A60 GESAC cuts stocking cost by reducing insert varieties for different pitches. Excellent comprehensive cutting performance stabilizes thread dimensional tolerance in steel & stainless steel inner threading, specially optimized for compact Swiss automatic lathe tiny bore threading, becoming cost-effective universal internal threading insert for diversified small-batch machining workshops.