Kennametal 7096388 Boring Insert Tdhh Carbide KCU10B

Product Description

The KENNAMETAL 7096388 is a carbide boring insert designed for precision internal turning and boring operations on CNC lathes and machining centers. Formed in a triangle shape with an included angle of 60 degrees, this TDHH-style insert features a left-hand cutting orientation and an AlTiN coating for extended tool life in demanding materials. The KCU10B manufacturer grade is engineered for interrupted cuts and tough conditions. With three cutting edges per insert and a corner radius of 0.007 inches (0.18 mm), it delivers consistent chip control and bore geometry in production environments. It is installed and indexed by machinists and toolroom technicians working to tight bore tolerances.

This insert is suited for internal boring applications in both production and job-shop settings where left-hand cutting geometry is required. The TDHH insert style and H chipbreaker designation target applications involving chip management in small-diameter bores. The insert size code 128075 corresponds to a width of 0.0469 inches (1.20 mm), making it appropriate for fine boring passes where precise dimensional control is critical. It is typically used in ferrous and difficult-to-machine materials where AlTiN coating provides thermal and wear resistance.

Key Features

• Carbide substrate with AlTiN coating for wear and heat resistance in demanding cuts
• Triangle insert shape with 60-degree included angle and 3 indexable cutting edges
• Left-hand cutting orientation for specific boring head and toolholder configurations
• Corner radius of 0.007 inches (0.18 mm) for fine bore geometry and surface finish
• H chipbreaker geometry designed for controlled chip evacuation in confined bore environments
• 15-degree relief angle reduces cutting forces and supports bore wall clearance

Compatibility

Designed as a replacement-style boring insert for TDHH-compatible boring toolholders and heads requiring left-hand, triangle-style carbide inserts with insert size code 128075.

Installation Notes

Indexable carbide inserts are seated and secured by qualified machinists or CNC toolroom technicians. Always power down and lock out the machine spindle before indexing or replacing inserts. Use the correct torx or insert clamp key to seat the insert fully against the pocket locating surfaces without overtightening. Inspect the insert pocket for chips, wear, or damage before seating a new insert to avoid micro-fracture or premature edge failure.