Iscar 5509374 Turning Insert DNMX442HT IC6015 Heliturn

Product Description

The ISCAR 5509374 is a solid carbide turning insert in the DNMX442HT style, engineered for precision metal turning operations on CNC and manual lathes. It features a CVD-applied multilayer coating of TiCN, Al2O3, and TiN, which provides wear resistance and thermal stability during continuous and interrupted cuts. The 55-degree diamond insert shape (Shape Code D) combined with a positive rake geometry reduces cutting forces and improves chip flow. Insert length is 15.5 mm (0.610 inches), inscribed circle is 0.5 inches, and insert thickness is 0.25 inches. This insert is part of the Heliturn series and carries manufacturer grade IC6015, suited for medium to finishing turning passes.

This insert is designed for turning applications on stainless steel and similar ISO M-class workpiece materials, as designated by Primary Workpiece Material Code M. It is used in industrial machining environments by machinists and CNC operators. The DNMX style with clamp and pin holding method seats securely in compatible toolholders. Maximum depth of cut is 5.00 mm (0.197 inches), making it well-suited for medium finishing and semi-finishing passes. The 1/32-inch corner radius balances surface finish quality with edge strength across typical turning conditions.

Key Features

• CVD multilayer coating: TiCN, Al2O3, and TiN for wear and heat resistance
• 55-degree diamond insert shape with positive rake for reduced cutting forces
• IC6015 manufacturer grade engineered for ISO M-class workpiece materials
• Clamp and pin insert holding method for rigid, repeatable seating
• Maximum depth of cut: 5.00 mm (0.197 inches)
• Compliant with ISO 13399 cutting tool data standards

Compatibility

Designed for use with DNMX-style toolholders that accept a 55-degree diamond insert with a 0.5-inch inscribed circle and clamp-and-pin holding. Verify toolholder clearance code N and tolerance code M compatibility before installation. Belongs to the ISCAR Heliturn series.

Installation Notes

Installation should be performed by a qualified machinist or CNC technician with the machine powered down and the spindle locked before seating or replacing inserts. Use the appropriate torque wrench and clamp hardware specified by the toolholder manufacturer to secure the insert. Inspect the insert pocket and seating surfaces for chips or debris before installation. Discard worn inserts promptly — re-running a worn edge accelerates toolholder wear.