Iscar 5507692 CNMG542NR IC8250 Turning Insert Carbide

Product Description

The ISCAR 5507692 is a solid carbide turning insert in the CNMG542NR geometry, designed for single-point turning operations on CNC and manual lathes. It carries ISCAR grade IC8250 with a CVD-applied multilayer coating of TiCN, Al2O3, and TiN, delivering wear resistance and thermal stability across a wide cutting speed range. The insert features an 80-degree diamond shape (insert shape code C), a clearance code of N (0-degree relief angle), and tolerance code M. Corner radius measures 0.0315 inches (1/32 inch), and the inscribed circle diameter is 0.6252 inches (5/8 inch). Insert length is 15.90 mm (0.626 inches) and insert thickness is 0.250 inches. Licensed machinists and CNC programmers specify this insert for medium to finishing passes on stainless steel and carbon steel workpieces.

The 5507692 belongs to ISCARs Isoturn series, a line engineered for turning applications on ferrous materials. Primary workpiece material classifications are M (stainless steel) and P (steel) per ISO material coding. The NR chip breaker geometry is suited to medium-depth finishing and semi-finishing cuts, with a maximum depth of cut of 6.00 mm (0.236 inches). Holding method is compatible with clamp and pin insert-locking systems. This insert is sold individually per package, with a minimum order quantity of 10 pieces.

Key Features

• IC8250 grade with CVD TiCN, Al2O3, and TiN multilayer coating for thermal and abrasion resistance
• 80-degree diamond insert shape (code C) with NR chip breaker for medium and finish turning
• Maximum depth of cut: 6.00 mm (0.236 inches)
• Corner radius: 0.0315 inches (1/32 inch) for controlled surface finish
• Compatible with clamp and pin insert-locking toolholders
• Meets ISO 13399 tooling data standards for CAM and tool management integration

Compatibility

Designed for use in CNMG-style insert pockets on clamp and pin-lock turning toolholders. Primary workpiece materials are stainless steel (ISO material group M) and carbon and alloy steel (ISO material group P). Insert size code 542; inscribed circle 5/8 inch.

Installation Notes

Insert seating and clamping should be performed by a qualified machinist following the toolholder manufacturers torque specifications for the clamp screw. Ensure the insert pocket and seating surface are clean and free of chips before installation to prevent rocking or incorrect seating. Do not exceed the maximum recommended depth of cut for the insert geometry. Always stop spindle rotation and confirm machine is in a safe state before changing inserts.