Tungaloy 6804977 Grooving Insert JTGR3050F J740 Tin

Product Description

The TUNGALOY 6804977 is a solid carbide grooving insert designed for precision external grooving operations on CNC lathes and turning centers. Identified by insert style JTGR and grade J740 with a PVD-applied TiN coating, this right-hand insert delivers a cutting width of 0.5 mm (0.0197 inches) and a maximum depth of cut of 1.1 mm (0.0433 inches). The micrograin carbide substrate supports consistent edge integrity at fine cutting widths. It is held in place via a screw-clamping method and conforms to ISO 13399 standards for tooling data exchange.

This insert is suited for grooving stainless steel and general steel workpieces in both production and job-shop turning environments. The F chip breaker geometry is optimized for controlled chip formation at narrow cutting widths, making it appropriate for precision groove profiles in parts where tight dimensional tolerances and surface finish are required. The screw-in holding method provides repeatable seating in compatible JTGR-series toolholders. Installation is typically performed by qualified machinists or CNC setup technicians.

Key Features

• Solid micrograin carbide substrate with PVD TiN coating for wear resistance on stainless steel and steel
• 0.5 mm cutting width with a maximum depth of cut of 1.1 mm, supporting fine groove profiles
• F chip breaker geometry for controlled chip evacuation at narrow widths
• Right-hand orientation with screw-clamping insert retention for repeatable positioning
• Corner radius of 0.03 mm (0.0012 inches) for precise groove floor geometry
• Compliant with ISO 13399 tooling data standards

Compatibility

Designed for use in JTGR-series, J-series screw-clamp grooving toolholders compatible with insert size 3050 and an inscribed circle of 9.53 mm (3/8 inch). Primary workpiece materials are stainless steel (ISO material code M) and steel (ISO material code P).

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician with the machine spindle locked and all power isolated before insert indexing or replacement. Use the appropriate torque driver specified by the toolholder manufacturer for the clamping screw to ensure proper seating without cracking the insert. Inspect the insert pocket and clamping screw threads for debris or damage before seating a new insert. Follow the toolholder manufacturer's recommended cutting parameters for grade J740 in the target workpiece material.