Kyocera 8850659 Grooving Insert KCGP3072 PR1215 Carbide

Product Description

The KYOCERA 8850659 is a solid carbide grooving insert in the KCGP series, grade PR1215, designed for external grooving and parting operations on CNC lathes and turning centers. The insert features a PVD-applied MEGACOAT surface treatment on a micrograin carbide substrate, delivering wear resistance and edge integrity across a range of cutting conditions. Key dimensional specs include a 0.072-inch cutting width, a maximum depth of cut of 0.094 inches, and an overall length of 0.810 inches. The positive rake geometry and 3-degree lead angle reduce cutting forces on the workpiece. This insert is installed and indexed by licensed machinists and CNC operators in production and job-shop environments.

The PR1215 grade is engineered primarily for steel (ISO P) and secondarily for stainless steel (ISO M). It is suited to finish and semi-finish grooving passes where controlled chip evacuation and consistent groove width are required. The KCGP3072 insert size fits clamp-style toolholders designated for the KCGP series. Typical applications include OD grooving, undercut operations, and snap-ring groove machining on turned components in both low-volume and high-production settings.

Key Features

• Solid micrograin carbide substrate with PVD MEGACOAT coating for extended tool life on steel and stainless steel
• 0.072-inch cutting width with a maximum depth of cut of 0.094 inches
• Positive rake geometry with 3-degree rake angle and 3-degree lead angle to reduce cutting forces
• Right-hand insert orientation; clamp-style holding method
• Corner radius of 0.008 inches for controlled surface finish at groove edges
• Conforms to ANSI and ISO standards; ANSI/ISO code KCGP3072RPR1215

Compatibility

Designed for use in KCGP-series clamp-style grooving toolholders. Verify toolholder designation matches the KCGP3072 insert size before ordering. Compatible primary workpiece material is steel (ISO P code); secondary workpiece material is stainless steel (ISO M code).

Installation Notes

Installation is performed by qualified machinists following standard insert-indexing procedures for clamp-style grooving toolholders. Ensure the machine spindle is fully stopped and locked out before handling or indexing the insert. Inspect the insert seat and clamp for chips or debris prior to seating the new insert to ensure proper clamping force and runout. Dispose of worn inserts according to applicable shop safety protocols for carbide tooling.