Kennametal 1114487 Grooving Insert NGD3125K K313 Carbide

Product Description

The KENNAMETAL 1114487 is a solid carbide grooving insert designed for precision external grooving and parting operations on CNC lathes and turning centers. Built to the NGD insert style and manufactured in grade K313, this uncoated bright-finish insert delivers consistent performance in demanding cutting applications. The left-hand orientation and positive rake angle of 10 degrees promote clean chip flow and reduce cutting forces during the grooving pass. A corner radius of 0.19 mm and a cutting width of 3.18 mm (0.1252 inches) make it well suited for controlled, repeatable groove profiles. Licensed machinists and CNC operators in production and job-shop environments will recognize this insert as part of the established Top Notch series.

This insert is intended for use in Top Notch series grooving toolholders and blade systems. It is suited for grooving operations where maximum depth of cut ranges from 5.00 mm to 10.00 mm (roughly 0.200 to 0.300 inches), with a nominal maximum depth of 6.35 mm (0.250 inches). The 55-degree included angle and K chip breaker geometry are optimized for metric-dimensioned applications on ferrous and non-ferrous workpiece materials classified in the C3 and C4 material grade ranges. No coating is applied, keeping the insert in its bright, as-ground condition for applications where coating is not required or preferred.

Key Features

• Insert style NGD in grade K313, uncoated bright finish
• Left-hand cutting orientation with positive 10-degree rake angle
• Cutting width of 3.18 mm (0.1252 inches) for precise groove sizing
• Maximum depth of cut 6.35 mm (0.250 inches); operational range 5.00 mm to 10.00 mm
• K chip breaker geometry with 55-degree included angle for controlled chip formation
• Corner radius of 0.19 mm (0.0075 inches) for defined groove edge geometry
• Part of the Top Notch series for broad toolholder compatibility within that system

Compatibility

Designed for use with Top Notch series grooving toolholders and blade systems that accept NGD-style inserts in the 3125 insert size. Material grades C3 and C4 are supported as noted in the product specifications.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician with the machine powered off and the spindle locked before changing inserts. Use the appropriate Top Notch clamping screw and torx or hex key as specified by the toolholder manufacturer. Inspect the insert pocket and clamping mechanism for chips or debris before seating the insert. Never overtighten the clamping screw, as carbide inserts are brittle and can crack under uneven clamping load.