Kennametal 1127915 Pilot Drill Insert 25mm Hts Dft

Product Description

The KENNAMETAL 1127915 is a high speed steel pilot drill insert designed for use with HTS DFT modular drilling systems. Manufactured to Insert Style B510 and Manufacturer Grade AS3, this 25mm diameter insert features a 118-degree point angle and a titanium nitride (TiN) coating. The TiN coating improves surface hardness and extends tool life in demanding drilling applications. This insert is the replaceable cutting tip within a modular drill body, allowing technicians to swap worn or damaged inserts without replacing the entire drill assembly. It is suited for production environments where consistent hole quality and reduced tooling cost per hole are priorities.

This pilot drill insert is intended for use in metal-cutting applications on machining centers, CNC lathes, and drill presses. The HTS DFT series is commonly applied in general-purpose hole-making operations across steel, cast iron, and similar ferrous workpiece materials. The 25mm diameter makes it appropriate for medium-to-large bore drilling tasks in both job shop and high-volume production settings. Installation and replacement are performed by machinists or tooling technicians as part of routine insert indexing and tool maintenance procedures.

Key Features

• 25mm cutting diameter for medium-to-large bore drilling applications
• 118-degree point angle for general-purpose metal cutting
• High speed steel construction rated to Manufacturer Grade AS3
• Titanium nitride (TiN) coating for increased surface hardness and extended wear life
• Insert Style B510 for drop-in replacement within compatible HTS DFT drill bodies
• Modular design reduces tooling cost by replacing only the insert, not the full drill body

Compatibility

Designed as a replacement pilot drill insert for KENNAMETAL HTS DFT series modular drill bodies accepting 25mm diameter Style B510 inserts. Verify drill body model and insert seat geometry before ordering.

Installation Notes

Insert replacement should be performed by a qualified machinist or tooling technician. Ensure the machine spindle is fully stopped and locked out before removing or seating the insert. Clean the insert pocket and seating surfaces before installing the new insert to ensure proper seating and runout. Follow the drill body manufacturer torque guidance for clamping screws and inspect for correct insert retention before resuming cutting operations.