Kennametal 6388585 Carbide Replaceable Tip Drill 23/32 in

Product Description

The KENNAMETAL 6388585 is a solid carbide replaceable tip drill insert designed for use in KTFS-series drill bodies. The insert carries the KTFSS07188HPG ISO designation and is manufactured in grade KCP15A from fine-grain solid carbide with a PVD-applied AlTiN coating. It cuts a 23/32-inch (0.6250-inch decimal) diameter with a 180-degree drill point angle, a helical flute design, and an HPG insert geometry optimized for chip formation. The clamp-type insert seat is size W. Cutting depth is supported by a 0.3594-inch functional length and a 9.00 mm flute length. The part is installed by machinists and toolroom technicians and is suited for production drilling environments where indexable tip convenience is required.

This replaceable tip drill insert is rated for primary workpiece materials of steel (ISO code P) and cast iron (ISO code K). Supported drilling applications include standard through-drilling, inclined entry and exit drilling, and stacked-plate drilling. The 2-flute, 2-margin geometry without internal coolant is configured for these applications. The KTFSS series accommodates regular spiral cutting and a standard point type, making this insert appropriate for general-purpose hole-making in ferrous materials across job shop and production environments.

Key Features

• Solid carbide KCP15A fine-grain substrate with PVD AlTiN coating for extended tool life in steel and cast iron
• 23/32-inch (0.6250-inch) cutting diameter with 180-degree drill point angle for flat-bottomed entry geometry
• HPG insert geometry promotes controlled chip formation and reduced cutting forces
• Supports inclined-exit and stacked-plate drilling in addition to standard through-drilling
• Clamp-type insert holding method in size-W seat for positive, repeatable tip location
• 2-flute, 2-margin design without through-coolant - compatible with external coolant application

Compatibility

Designed for use in KENNAMETAL KTFSS-series replaceable tip drill bodies accepting a size-W insert seat. Confirm body series, seat size, and ISO designation KTFSS07188HPG match the target drill body before ordering.

Installation Notes

Insert replacement should be performed by a qualified machinist or toolroom technician with the spindle locked out and the machine de-energized per applicable lockout/tagout procedures. Seat the insert fully into the clamp pocket and verify secure clamping before returning the tool to service. Inspect the insert seat on the drill body for wear or debris before installing a new tip, as a damaged seat will affect runout and hole quality. Do not exceed the drill body manufacturer's recommended feed and speed parameters for this insert grade and workpiece material.