Kennametal 4175837 Grooving Insert NGD3189 KCU10 Solid Carbide

Product Description

The KENNAMETAL 4175837 is a solid carbide grooving insert designed for precision external grooving operations on CNC lathes and turning centers. Carrying the KCU10 manufacturer grade and an AlTiN PVD coating, it delivers strong wear resistance and thermal stability at elevated cutting speeds. The insert features a 4.80 mm cutting width, a maximum depth of cut of 6.35 mm, and a cutting height of 8.74 mm. The 0.57 mm corner radius and 55-degree included angle define the cutting geometry. This insert is intended for use by machinists and toolroom technicians working with steel and harder workpiece materials in a production turning environment.

The 4175837 belongs to the Top Notch series, a clamp-held insert system widely used in external grooving and cutoff applications on lathes and turning centers. Its right-hand orientation suits standard right-hand toolholders in that series. The metric sizing is designated as insert size 3189, with an overall width of 4.98 mm. Material grade ratings of C3 and C4 indicate suitability for a range of ferrous and non-ferrous machining applications. This insert is sold individually but carries a minimum order quantity of 5 units, making it appropriate for shop stock replenishment.

Key Features

• Solid carbide construction with AlTiN PVD coating for thermal resistance and extended tool life
• 4.80 mm cutting width with a maximum depth of cut of 6.35 mm
• 0.57 mm corner radius and 55-degree included angle for defined grooving geometry
• Right-hand insert orientation for compatibility with standard Top Notch clamp-style toolholders
• Clamp-held insert holding method provides secure, repeatable seating in the toolholder pocket
• KCU10 grade with C3 and C4 material ratings for use across a range of workpiece materials

Compatibility

Designed as a Top Notch series replacement grooving insert for use with compatible clamp-style external grooving toolholders accepting the NGD insert style at insert size 3189.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician with the machine powered off, spindle locked, and all energy sources isolated per shop lockout/tagout procedures. Seat the insert fully into the toolholder pocket before engaging the clamp to ensure proper contact and repeatable tool position. Inspect the pocket and clamp hardware for wear or debris before each insert change. Do not use damaged clamps or worn pockets, as improper seating can cause insert fracture during cutting.