Kennametal 6370939 Replaceable Drill Tip 0.75in 140deg KCMS15

Product Description

The KENNAMETAL 6370939 is a replaceable carbide drill tip designed for use with KTFST-series modular drill bodies. Built from fine-grain solid carbide and coated with AlTiN via a PVD process, this tip delivers reliable performance in demanding drilling applications. It measures 0.75 inches in cutting diameter with a 140-degree point angle and an HPL insert geometry optimized for low cutting forces. The KTFST07500HPL designation identifies the ISO number for this tip. Coolant-through capability is built in, supporting through-spindle coolant delivery for improved chip evacuation and tool life. Seat size X ensures a precise mechanical fit into the compatible KTFST drill body. Installation is performed by machinists and tooling specialists in production or job-shop environments.

This replaceable drill tip is primarily suited for drilling stainless steel and other difficult-to-machine materials classified under ISO material code M. The helical flute design with 2 flutes and 2 margins supports accurate hole entry, inclined surface exits, and stacked-plate drilling operations. The 140-degree included angle reduces thrust force on entry and promotes self-centering on challenging workpiece geometries. Typical applications include precision drilling in aerospace, food processing, and industrial fabrication where stainless steel is the primary workpiece material.

Key Features

• Fine-grain solid carbide construction for toughness and wear resistance in ISO-M materials
• AlTiN coating applied via PVD process for high-temperature oxidation resistance
• 140-degree point angle with HPL geometry reduces entry thrust and improves self-centering
• Coolant-through design supports through-spindle coolant delivery for chip evacuation
• 2-flute, 2-margin, helical flute configuration supports inclined exits and stacked-plate drilling
• Clamp-style insert holding method with seat size X for secure, repeatable seating in KTFST bodies

Compatibility

Designed for use with KTFST-series modular drill bodies accepting seat size X replaceable tips. ISO number KTFST07500HPL identifies the tip geometry and body interface. Verify seat size and series designation on the drill body before ordering.

Installation Notes

Replaceable drill tip installation should be performed by a qualified machinist or tooling technician. Ensure the drill body is fully removed from the spindle and de-energized before seating or removing the tip. Use the manufacturer-specified torx or clamping key to secure the clamp to the correct seating torque per the KTFST body documentation - do not substitute tools or overtighten. Inspect the insert seat for chips, debris, or wear before installing a new tip, as seat damage will affect runout and hole quality.