Kennametal 6388728 Carbide Replaceable Tip Drill 12mm Ktfs

Product Description

The KENNAMETAL 6388728 is a carbide replaceable tip drill designed for precision hole-making in metal cutting applications. Built on the KTFS series platform, it accepts a solid carbide tip with an HPG insert geometry and a KCP15A manufacturer grade. The cutting diameter measures 12mm (0.4724 inches), and the drill point is ground to a 143-degree included angle, which suits a wide range of ferrous and non-ferrous workpiece materials. The AlTiN coating is applied via a PVD process, providing heat resistance and extended tool life at elevated cutting speeds. Licensed machinists and CNC tooling specialists are the typical end users for this style of replaceable tip drill.

This replaceable tip drill is suited for use in CNC machining centers, vertical and horizontal mills, and production drilling operations where consistent hole quality and fast tip changes are required. The KTFS series design allows the carbide tip to be swapped without removing the drill body from the spindle, reducing downtime in high-volume production environments. It is commonly applied in automotive, aerospace, and general metalworking shops running medium to high production cycles.

Key Features

• 12mm cutting diameter (0.4724 inches) for precise hole sizing
• 143-degree drill point angle reduces thrust and improves chip formation on entry
• Solid carbide KCP15A tip with HPG insert geometry for controlled chip flow
• AlTiN coating applied by PVD process for thermal resistance and wear protection
• Replaceable tip design (KTFS series) minimizes tool change time at the spindle
• Insert seat size N for correct seating in compatible KTFS drill bodies

Compatibility

Designed as an OEM-style replaceable tip for KTFS series drill bodies accepting an N-seat insert geometry. Specific body compatibility should be confirmed against KENNAMETAL KTFS series tooling documentation.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. The machine spindle must be fully stopped and the tool locked out before tip replacement. Use the appropriate KENNAMETAL torx or drive key as specified for the KTFS seat — do not use improvised tools that may damage the carbide tip or seat surface. Verify correct seating and tip engagement before resuming cutting operations.