Kennametal 1175040 Turning Insert KC730 Carbide Triangle

Product Description

The KENNAMETAL 1175040 is a solid carbide turning insert designed for precision metal cutting on CNC lathes and turning centers. Manufactured in the TDHB insert style with a triangular 60-degree included angle, this insert carries a TiN (titanium nitride) PVD coating and the KC730 manufacturer grade. It features a 0.1600-inch inscribed circle, a 0.0079-inch corner radius, a 15-degree relief angle, and a positive rake geometry with a flat-top chipbreaker. The screw-on holding method provides secure seating under interrupted and continuous cuts. Licensed machinists and CNC operators working in production or job-shop environments are the primary installers of this insert.

This insert is suited for turning steel, stainless steel, superalloys, and titanium — corresponding to ISO material codes P, M, and S. It is well matched to light-to-moderate roughing and finishing passes, with a maximum depth of cut of 1.25 mm (0.0492 inches). The flat-top chipbreaker geometry promotes chip control during high-feed operations on difficult-to-machine alloys. The three available cutting edges extend tool life and reduce per-edge cost in high-volume turning applications.

Key Features

• KC730 grade with PVD TiN coating for wear resistance on steel and stainless steel
• 60-degree triangular insert shape with three usable cutting edges
• Positive rake, flat-top chipbreaker geometry for efficient chip evacuation
• 15-degree relief angle reduces flank wear on difficult materials
• Screw-on holding method for repeatable, rigid insert positioning
• Meets ANSI and ISO insert standards for broad toolholder compatibility

Compatibility

Designed as an OEM-style screw-on turning insert conforming to ANSI and ISO standards for TDHB-style insert seats in compatible turning toolholders.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Ensure the machine spindle is fully stopped and the toolholder is secured in the turret before changing inserts. Use the appropriate Torx or hex key to tighten the clamping screw to the toolholder manufacturer's specified torque — do not overtighten, as carbide inserts are brittle and can fracture under excessive clamping force. Inspect the insert pocket and seating surface for chips or debris before seating a new insert.