Kennametal 6771128 Replaceable Drill Tip 0.5 in KCP15A Altin

Product Description

The KENNAMETAL 6771128 is a replaceable drill tip designed for use with KTFSS-series modular drilling systems. It carries the ISO designation KTFSS05000FEG and features a 0.5000-inch cutting diameter with a 180-degree flat point geometry. The tip is manufactured from fine-grain solid carbide and finished with an AlTiN coating applied via PVD process, which improves heat resistance and tool life in ferrous materials. Seat size O and FEG insert geometry ensure proper indexing and clamping force when seated in the matching KTFSS tool body. This tip is installed by machinists and toolroom technicians on CNC turning centers and machining centers.

This drill tip is intended for drilling operations in steel, stainless steel, and cast iron workpieces, corresponding to ISO material codes P, M, and K. The flat 180-degree point and straight flute configuration make it well suited for flat-bottom drilling, inclined entry, inclined exit, and counterboring applications. The straight spiral and two-flute, four-margin design support stable cutting in through-hole and blind-hole conditions. Coolant-through capability is not present on this tip, so external or flood coolant is the appropriate delivery method when cooling is required.

Key Features

• 0.5000-inch cutting diameter with 180-degree flat point for flat-bottom and inclined-entry drilling
• Fine-grain solid carbide substrate, grade KCP15A, for wear resistance in steel and cast iron
• AlTiN coating via PVD process improves thermal stability and tool life in ferrous materials
• FEG insert geometry and seat size O for secure clamping in KTFSS-series tool bodies
• Two-flute, four-margin straight design supports stable chip control and bore accuracy
• Suitable for flat-bottom drilling, inclined entry and exit, and counterboring operations

Compatibility

Designed for use with KTFSS-series modular drill bodies that accept seat size O replaceable tips. Compatible with primary workpiece materials including steel, stainless steel, and cast iron (ISO material codes P, M, and K).

Installation Notes

Replaceable drill tips of this type are seated and clamped by a machinist or toolroom technician — power down and lock out the spindle before indexing or replacing the tip. Ensure the insert seat is clean and free of chips or debris before seating the tip, as contamination in the pocket can cause improper seating and premature failure. Follow the tool body manufacturer's specified clamping procedure for the KTFSS seat; do not substitute fasteners or exceed the recommended clamp engagement. Verify runout after installation before returning the tool to service.