Kennametal 6388696 Carbide Replaceable Tip Drill 27/64 in

Product Description

The KENNAMETAL 6388696 is a carbide replaceable tip drill insert designated by ISO number KTFSS04219HPG, manufactured in grade KCP15A with a fine grain solid carbide construction. It carries a Physical Vapor Deposition (PVD) applied AlTiN finish and is designed for use in KTFS-series replaceable tip drill bodies. The insert features an HPG geometry with a standard point type, 180-degree drill point angle, and a helical, regular-spiral flute profile with two flutes and two margins. It is installed by licensed machinists and tooling technicians working in precision metal-cutting environments.

This tip is suited for drilling applications in steel and cast iron workpieces, corresponding to ISO material codes P and K. Designed to handle inclined exit surfaces and stacked plate configurations, it fits production and job-shop environments where replaceable tip systems reduce downtime versus solid drill replacement. The HPG geometry and AlTiN finish together support performance in ferrous and wear-demanding materials without through-tool coolant, as this insert carries no coolant-through feature.

Key Features

• Solid carbide fine grain construction in manufacturer grade KCP15A
• AlTiN coating applied via PVD process for surface hardness and heat resistance
• HPG insert geometry optimized for steel and cast iron drilling
• Two-flute, two-margin helical design with standard 180-degree point angle
• Rated for inclined exit and stacked plate drilling applications
• Insert seat size K, compatible with KTFSS-series drill bodies

Compatibility

Designed as a replaceable tip insert for KTFSS-series drill bodies accepting insert seat size K. ISO number KTFSS04219HPG identifies fitment within the KTFS system for 0.4219 inch cutting diameter applications.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Power down and lock out the spindle before seating or removing the insert. Use the appropriate clamp and torquing tool as specified by the KTFSS drill body documentation - do not apply improvised clamping methods. Verify insert seating and clamp engagement before resuming cutting operations.