Kennametal 6388821 Replaceable Drill Tip 0.5938 in KCP15A

Product Description

The KENNAMETAL 6388821 is a replaceable drill tip designed for use with KTFSS-series modular drilling systems. It carries a 0.5938-inch cutting diameter, a 180-degree point angle, and a standard HPG insert geometry. The tip is manufactured from fine-grain solid carbide and finished with an AlTiN coating applied via a PVD process, delivering heat resistance and edge durability in demanding cut conditions. The insert seat size is T, and the tip clamps securely into compatible KTFSS holders. This tip is installed by machinists and metalworking professionals in production and job-shop environments where replaceable-tip drills reduce downtime versus regrindable tooling.

This drill tip is suited for drilling operations in steel and cast iron workpiece materials, corresponding to ISO material codes P and K. The HPG geometry supports applications including straight drilling, inclined-surface entry, exit on inclined surfaces, and stacked-plate drilling. With a two-flute, two-margin, helical flute configuration and a regular spiral, it is appropriate for through-hole and blind-hole work where consistent chip evacuation and hole quality are required. Coolant-through capability is not provided on this tip.

Key Features

• Fine-grain solid carbide substrate for improved edge toughness and wear resistance
• AlTiN coating via PVD process for thermal protection in steel and cast iron cutting
• 180-degree standard point angle with HPG geometry for accurate entry and reduced thrust
• Two-flute, two-margin, helical flute design for controlled chip evacuation
• Compatible with inclined-exit and stacked-plate drilling applications
• Insert seat size T with clamp-style holding for repeatable tip indexing

Compatibility

Designed for use with KTFSS-series replaceable-tip drill holders requiring an insert seat size T. Compatible with workpiece materials classified under ISO codes P (steel) and K (cast iron).

Installation Notes

Installation is performed by a qualified machinist or toolroom technician. The machine spindle must be fully stopped and the tool holder secured in the spindle before seating or removing the replaceable tip. Use the manufacturer-specified clamping torque tool and procedure as outlined in the KENNAMETAL KTFSS holder documentation - do not substitute generic fasteners or exceed recommended clamp force. Verify proper tip seating and zero runout before initiating a cut.