Kennametal 2499791 Carbide Replaceable Tip Drill 25.5mm

Product Description

The KENNAMETAL 2499791 is a KSEM-series carbide replaceable tip drill engineered for high-productivity hole-making in steel and cast iron. The solid carbide tip carries a KC7315 grade designation with a PVD-applied TiAlN coating and an HPG insert geometry for improved chip control and edge stability. The 140-degree drill point angle suits standard entry and exit conditions. With a 25.5mm cutting diameter and through-coolant capability, this drill is suited for CNC machining centers where consistent hole quality and tool life are required. Installation and tip replacement are performed by machining professionals in production or job-shop environments.

This replaceable tip drill is designed for drilling operations in steel (ISO P) and cast iron (ISO K) workpieces. Supported applications include standard drilling, inclined-surface entry and exit, stacked-plate drilling, and through-coolant or MQL (minimum quantity lubricant) setups. The KSEM insert seat size 5 platform uses a clamp-style holding method, allowing tip replacement at the machine without removing the drill body. Its two-flute, two-margin helical flute design promotes straight tracking and clean hole walls in these material categories.

Key Features

• Solid carbide tip with KC7315 fine-grain grade for wear resistance in steel and cast iron
• PVD TiAlN coating for thermal and oxidation resistance at elevated cutting speeds
• 140-degree standard drill point angle for controlled entry on flat and mildly inclined surfaces
• Through-coolant design compatible with MQL and direct coolant delivery
• KSEM seat size 5 clamp-style interface for fast, repeatable tip indexing
• Rated for inclined exit, stacked-plate, and standard through-hole drilling applications

Compatibility

Designed for use with KSEM-series drill bodies accepting seat size 5 replaceable tips. Compatible workpiece materials include steel (ISO P) and cast iron (ISO K) as specified in the product data.

Installation Notes

Tip replacement and initial setup should be performed by a qualified machinist or tooling technician. Always power down and lock out the machine spindle before seating or removing the replaceable tip. Use the manufacturer-specified torque tool and clamp procedure for the KSEM seat interface to ensure proper tip retention and runout. Verify coolant passage alignment and flow before returning the tool to cutting service.