Kennametal 2658226 Solid Carbide Jobber Drill 25/64 in

Product Description

The KENNAMETAL 2658226 is a solid carbide jobber-length drill bit designed for high-performance hole-making in ferrous and non-ferrous materials. It carries a TiAlN coating for heat resistance and extended tool life in demanding applications. The 140-degree point angle reduces thrust and improves centering, while the web-thinned tip eases entry and lowers cutting forces. At 4.0551 inches overall length with a 2.4016-inch flute length, this drill suits typical jobber-reach applications. Right-hand spiral flutes evacuate chips efficiently. Machinists and tooling specialists running production or maintenance operations on steel, stainless, cast iron, or aluminum will find this bit built for sustained output at tight tolerances.

This drill bit is rated for use on steel, stainless steel, cast iron, and aluminum and non-ferrous materials. The coolant-through design makes it compatible with CNC machining centers and drill presses equipped with through-spindle coolant delivery, improving chip evacuation and thermal management in deep-hole operations. The straight cylindrical shank fits standard drill chucks and collet holders. It conforms to DIN 6537L specification, making it a fit for shops that standardize on DIN tooling systems. The 25/64-inch diameter targets a common hole size used in fastener clearance, reaming prep, and precision bore applications.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• TiAlN coating extends tool life in high-heat cutting environments
• 140-degree point angle with web thinning reduces entry thrust and improves self-centering
• Coolant-through capability supports deep-hole drilling and chip flushing
• Right-hand regular spiral flutes provide reliable chip evacuation
• Conforms to DIN 6537L specification for dimensional consistency

Compatibility

Designed for use on steel, stainless steel, cast iron, and aluminum and non-ferrous workpiece materials. Fits standard drill chucks and collet holders accepting a 0.3937-inch straight cylindrical shank. Compatible with CNC machining centers and manual drill presses with or without through-spindle coolant.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the spindle fully stopped and the machine locked out per facility safety procedures. Ensure the shank is fully seated and the chuck or collet is tightened to the tool holder manufacturer's specification before operation. When using coolant-through capability, verify coolant pressure and flow rate are within the machine and toolholder specifications before starting the cut. Inspect the cutting edges for chipping or wear before each use, as carbide drills can fail suddenly if run past serviceable condition.