Hertel 8852042 Turning Insert CCGT32.50.5 Cermet

Product Description

The HERTEL 8852042 is a cermet uncoated turning insert designed for precision metal cutting operations on CNC and manual lathes. Manufactured in a CCGT style with an 80-degree diamond insert shape, this insert delivers clean, consistent cuts on ferrous and non-ferrous materials where surface finish is critical. The neutral hand orientation suits a range of turning tool holders. Key dimensional specs include a 3/8-inch (0.3750-inch) inscribed circle, an insert length of 0.3543 inches (9.00 mm), and a corner radius of 0.0079 inches. The HT115CR grade cermet substrate provides wear resistance and edge integrity at moderate to high cutting speeds.

This insert is suited for finishing and semi-finishing turning applications in production and job-shop environments. The positive rake geometry reduces cutting forces and is well-matched to close-tolerance work on steel, stainless, and cast iron where dimensional accuracy and surface finish are priorities. Machinists and CNC operators in general machining, aerospace component work, and precision parts manufacturing are the primary installers and users of this insert type.

Key Features

• Cermet uncoated substrate for consistent edge wear and sharp, stable cutting geometry
• 80-degree diamond insert shape (Shape Code C) for versatile turning and profiling
• Positive rake angle reduces cutting forces on finishing passes
• Corner radius of 0.0079 inches supports fine surface finish requirements
• Screw-holding method for secure, repeatable seating in compatible tool holders
• Chip breaker style T for controlled chip formation during turning operations

Compatibility

Designed as an OEM-style replacement or direct-use turning insert for CCGT-style tool holders accepting a C insert shape with a 3/8-inch inscribed circle, 5/32-inch insert thickness, and screw-clamp holding method. Confirm holder specifications before installation.

Installation Notes

This insert is installed by qualified machinists or CNC technicians. Power down and lock out the machine spindle before changing inserts. Seat the insert fully against the tool holder pocket and torque the clamp screw to the tool holder manufacturer specification. Inspect the cutting edge and seating surfaces for chips or debris before securing — a poorly seated insert will affect dimensional accuracy and can cause insert fracture.