Kennametal 6012721 Grooving Insert 4mm KCU10 Altin

Product Description

The KENNAMETAL 6012721 is a solid carbide grooving insert designed for precision grooving and parting operations on CNC lathes and turning centers. Built to the ER-P insert style with a GUP chip breaker geometry, it carries a KCU10 grade designation and a PVD-applied AlTiN coating for extended tool life in demanding cutting conditions. The insert delivers a 4.00 mm cutting width with a maximum depth of cut of 2.69 mm and features a full corner radius of 2.00 mm. A positive rake angle of 10 degrees and a 3-degree lead angle support consistent chip control. This insert is part of the Beyond Evolution series and is specified by machinists and toolroom technicians working in production turning environments.

This insert is suited for metric-dimensioned grooving applications on CNC turning equipment where repeatable groove width and controlled chip evacuation are required. The GUP chip breaker is intended for general-purpose grooving where consistent chip formation is a priority. The neutral hand orientation makes it applicable in standard grooving toolholder setups. Typical installation scenarios include OD grooving on ferrous and non-ferrous workpieces using compatible ER-P style toolholders. Sold as a single insert per package.

Key Features

• KCU10 grade solid carbide with PVD-applied AlTiN coating for wear and heat resistance
• 4.00 mm cutting width with a maximum depth of cut of 2.69 mm
• Full corner radius of 2.00 mm for smooth groove floor geometry
• Positive rake angle (10 degrees) and GUP chip breaker for reliable chip control
• ER-P insert style, neutral hand, compatible with standard ER-P grooving toolholders
• Part of the Beyond Evolution series with metric sizing and PVD coating process

Compatibility

Designed for use in ER-P style grooving toolholders that accept a size 4 insert seat. Verify toolholder seat size and insert style designation before installation.

Installation Notes

This insert is installed and replaced by machinists or toolroom technicians on CNC or manual lathes. Power down and lock out the machine before changing inserts. Use the appropriate torque wrench or insert clamp key specified by the toolholder manufacturer — do not overtighten the clamping screw. Inspect the insert seat and clamp for damage or debris before seating the new insert.