Kennametal 6388734 Replaceable Tip Drill 31/64 in Carbide

Product Description

The KENNAMETAL 6388734 is a carbide replaceable tip drill designed for precision hole-making in steel and cast iron. It carries the KTFSS04844HPG tip designation and runs in the KTFS series platform. The tip is manufactured from solid carbide with a fine grain substrate and coated with AlTiN via a PVD process, giving it strong wear resistance and thermal stability under high chip loads. The 180-degree drill point angle delivers a flat entry geometry suited to demanding production drilling applications. This insert is installed by licensed machinists and CNC operators in shop and production environments.

This replaceable tip drill insert is used in ferrous metal machining applications including general drilling in steel and cast iron, inclined exit drilling, and stacked plate drilling. The HPG insert geometry and two-flute, two-margin configuration support controlled chip evacuation without through-coolant. It is a direct replacement tip for compatible KTFS-series drill bodies used in CNC machining centers and drill presses in both job shop and production settings.

Key Features

• Solid carbide tip with fine grain substrate for edge stability in ferrous materials
• AlTiN coating applied via PVD process for elevated heat and wear resistance
• 180-degree included angle for flat-bottom and inclined-exit drilling capability
• HPG insert geometry with two-flute, two-margin configuration for controlled chip flow
• Compatible with inclined exit, stacked plate, and standard through-hole drilling operations
• Clamp-style insert holding for secure, repeatable tip seating in KTFS-series bodies

Compatibility

Designed for use with KTFS-series replaceable tip drill bodies accepting insert seat size N. Compatible primary workpiece materials are steel (ISO material code P) and cast iron (ISO material code K).

Installation Notes

Installation should be performed by a qualified machinist following the drill body manufacturer's clamping procedure. Power down and lock out the machine spindle before seating or removing the replaceable tip. Use the correct torque tool specified for the KTFS clamp mechanism — do not overtighten by hand. Inspect the insert seat for chips or debris before installing a new tip to ensure proper seating and runout accuracy.