Kennametal 6388706 Replaceable Drill Tip 0.4375 in KCP15A

Product Description

The KENNAMETAL 6388706 is a replaceable drill tip designed for use with compatible KTFSS-series modular drill bodies. Built from solid carbide with a fine-grain material grade and a PVD-applied AlTiN coating, this tip delivers consistent cutting performance on steel and cast iron workpieces. The 180-degree point angle with HPG insert geometry reduces thrust load and supports accurate entry. The 0.4375-inch (7/16 inch) cutting diameter and helical flute design are optimized for chip evacuation in through-hole and blind-hole drilling operations. Licensed machinists and toolroom technicians are the typical installers of this tip in production and job-shop environments.

This replaceable drill tip is suited for drilling operations on steel and cast iron in both production machining and maintenance environments. It is designed for use in applications including standard drilling, inclined-exit drilling, and stacked-plate drilling. The 2-flute, 2-margin configuration without coolant-through passages makes it appropriate for setups where internal coolant is not available. The clamp-style insert holding method secures the tip within the matching KTFSS-series seat size L drill body.

Key Features

• Solid carbide construction with fine-grain material grade for wear resistance
• PVD-applied AlTiN coating suitable for steel and cast iron cutting
• 180-degree point angle with HPG geometry reduces entry thrust
• Helical flute design with 2 flutes and 2 margins promotes chip evacuation
• Rated for inclined-exit drilling and stacked-plate drilling applications
• Clamp-style retention in seat size L for secure seating in the drill body

Compatibility

Designed for use with KTFSS-series modular drill bodies requiring a seat size L replaceable drill tip. ISO number KTFSS04375HPG identifies the matching insert geometry and seat configuration. Verify seat size and series compatibility with the host drill body before ordering.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician familiar with modular drill systems. Ensure the drill body is fully removed from the spindle and secured before seating or removing the tip. Clean the insert pocket thoroughly before installation to ensure proper seating and tip runout. Follow the tool manufacturer's clamping torque procedure for the clamp-style retention mechanism.