Kennametal 6388668 Replaceable Drill Tip 0.3906 in KCP15A

Product Description

The KENNAMETAL 6388668 is a replaceable drill tip in the KTFSS series, designed for use with compatible modular drill bodies in precision metal-cutting operations. This solid carbide insert features a 0.3906 inch cutting diameter, a 180-degree point angle, and an AlTiN coating applied via PVD process. The KCP15A grade uses fine-grain carbide for wear resistance in demanding drilling applications. Seat size I and the HPG insert geometry provide secure clamping and consistent chip evacuation. Machinists and tooling technicians install this tip as a replaceable cutting element, extending tool body life while maintaining hole accuracy.

This drill tip is suited for drilling steel and cast iron in both production and job-shop environments. It handles demanding setups including inclined exit surfaces and stacked plate configurations. The 2-flute, 2-margin helical flute design with regular spiral supports stable cutting action in P and K workpiece material groups. The clamp-held insert method allows fast tip changes at the machine without removing the drill body from the spindle.

Key Features

• Solid carbide construction in fine-grain KCP15A grade for durability in steel and cast iron
• AlTiN coating via PVD process for thermal resistance and extended tool life
• 180-degree point angle with HPG insert geometry for stable entry and exit
• 2-flute, 2-margin helical configuration supports chip control without through-coolant
• Rated for inclined exit and stacked plate drilling applications
• Clamp-held seat size I for repeatable indexing and secure retention

Compatibility

Designed for use with KTFSS series modular drill bodies accepting a seat size I replaceable tip. Compatible with primary workpiece materials in ISO material groups P (steel) and K (cast iron).

Installation Notes

Installation and tip changes are performed by machinists or tooling technicians following the drill body manufacturer clamping procedure. Ensure the spindle is stopped and the machine is in a safe, locked-out state before indexing or replacing the tip. Use the recommended torque driver or clamp key specified for the KTFSS body to seat the insert properly. Do not exceed the cutting parameters published in the KENNAMETAL application guide for the workpiece material and drill body diameter.