Kennametal 1799578 Threading Insert KC5025 Carbide

Product Description

The KENNAMETAL 1799578 is a carbide threading insert in the Top Notch series, designed for cutting American Buttress threads on both internal and external workpieces. It carries the KC5025 manufacturer grade with a TiAlN finish applied via PVD coating process, delivering wear resistance and thermal stability in demanding threading operations. The insert is left-hand orientation, covers a pitch range of 8 to 16 TPI, and features a 45-degree included angle. At 0.1642 inches tip to top and a corner radius of 0.0067 inches, this is a precision ground insert suited for CNC lathes and turning centers running ferrous and non-ferrous materials. Machinists and toolroom technicians install this insert into compatible Top Notch toolholders.

This insert is appropriate for shops performing American Buttress thread forms, which are common in high-load applications such as hydraulic cylinder rods, power screws, and heavy mechanical assemblies. It handles both internal and external thread profiles in a single insert style, reducing tooling inventory. The left-hand configuration makes it the correct choice for left-hand spindle rotation setups or reverse-threaded components. Typical use environments include production machining cells and job shops running ISO material grades C2 and C6, which correspond to general-purpose and harder carbide classifications for turning and threading.

Key Features

• KC5025 carbide grade with TiAlN PVD coating for extended tool life in threading operations
• American Buttress thread standard, internal and external compatible
• Left-hand insert orientation for reverse-thread or left-hand spindle applications
• 8 to 16 TPI pitch range covers a broad set of Buttress thread specifications
• 45-degree included angle per American Buttress thread form geometry
• Top Notch series insert style for use with compatible KENNAMETAL Top Notch toolholders

Compatibility

Designed for use with KENNAMETAL Top Notch series toolholders accepting NTB style, size 3 inserts. Specific toolholder compatibility should be confirmed against KENNAMETAL Top Notch toolholder documentation before installation.

Installation Notes

This insert is installed by qualified machinists or toolroom technicians following standard carbide insert seating procedures. Power down and lock out the machine spindle before changing inserts. Seat the insert fully and evenly in the pocket without over-torquing the clamping screw, as carbide is brittle and can fracture under uneven clamping load. Verify insert orientation and thread hand before resuming cutting operations.