Kennametal 6371067 Carbide Replaceable Tip Drill 31/64

Product Description

The KENNAMETAL 6371067 is a carbide replaceable tip drill designed for precision hole-making in demanding machining applications. This drill uses the KTFST04844HPL tip in KCMS15 fine-grain solid carbide with an AlTiN PVD coating, a 140-degree included drill point angle, and a 31/64-inch (0.4844 inch) cutting diameter. The helical, 2-flute, 2-margin design with through-coolant capability supports high-speed drilling in stainless steel and other difficult-to-machine materials. It is installed and serviced by machinists and toolroom professionals on CNC machining centers and drilling machines.

This replaceable tip drill is engineered primarily for stainless steel (ISO material code M) and is suited to production drilling environments where tool life and hole quality are critical. The clamp-held insert system allows tip replacement without removing the drill body from the machine, reducing downtime. Supported applications include standard drilling, inclined-exit drilling, and stacked-plate drilling, making it a versatile choice for fixture work and multi-layer part operations.

Key Features

• 31/64-inch (0.4844 inch) cutting diameter with a 0.2422-inch functional length
• KCMS15 fine-grain solid carbide tip with AlTiN PVD coating for heat and wear resistance in stainless steel
• 140-degree drill point angle for reduced thrust and improved chip flow
• Through-coolant design supports high-feed drilling and extends tool life
• 2-flute, 2-margin, regular helical spiral geometry for chip evacuation and hole finish
• HPL insert geometry with clamp holding method for secure, repeatable tip indexing
• Rated for inclined-exit and stacked-plate drilling in addition to standard through-hole applications

Compatibility

Designed as a replacement tip for KTFS-series replaceable-tip drill bodies accepting insert seat size N. The ISO tip designation is KTFST04844HPL in grade KCMS15.

Installation Notes

Installation and tool changes should be performed by qualified machinists following the machine tool manufacturer and Kennametal tooling assembly guidelines. Power down and lock out the spindle before seating or removing the replaceable tip. Ensure the insert pocket and clamping surfaces are clean and free of chips before torquing the clamp to the tool manufacturer's specified value. Confirm coolant passages are clear and through-coolant pressure is set per the machining process plan before resuming operations.