Kennametal 4149225 Solid Carbide Jobber Drill 15/64 in

Product Description

The KENNAMETAL 4149225 is a solid carbide jobber-length drill bit designed for high-performance hole-making in demanding production environments. Ground to a 140-degree point angle with a multilayer TiAlN coating, it delivers consistent entry geometry and extended tool life when drilling through ferrous and non-ferrous materials. The straight-cylindrical shank measures 0.4063 inches in diameter, and the overall length is 3.2283 inches (82.00 mm). Two right-hand spiral flutes evacuate chips efficiently, and coolant-through capability supports through-tool flood or mist cooling at high spindle speeds. This drill is suited for use by machinists and tooling professionals operating CNC machining centers and drill presses.

Rated for primary workpiece materials including steel, stainless steel, cast iron, aluminum, and other non-ferrous alloys, the 4149225 conforms to DIN 6537K specification. It is built to a 5xD flute-to-diameter ratio, with a maximum drilling depth of 1.3780 inches (35.00 mm) and a flute length of 1.7323 inches (44.00 mm). The tapered web configuration adds rigidity and reduces deflection at depth. Typical applications include precision hole drilling in general machining, die and mold work, and production line operations where tight diameter tolerances are required.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard and abrasive materials
• Multilayer TiAlN coating reduces heat buildup and extends cutting life at elevated speeds
• 140-degree point angle provides a self-centering entry and reduces thrust force
• Coolant-through design supports internal chip flushing and thermal management
• Conforms to DIN 6537K specification for dimensional consistency
• Diameter tolerance held to -0.0005 to 0.0000 inches for precision fitment

Compatibility

Designed as a high-performance replacement jobber drill for CNC machining centers, drill presses, and rotary toolholding systems accepting a 0.4063-inch straight-cylindrical shank. Suitable for drilling steel, stainless steel, cast iron, aluminum, and non-ferrous alloys per manufacturer specification.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Ensure the machine spindle is fully powered down and at a complete stop before inserting or removing the drill from the chuck or collet holder. Verify the shank is fully seated and the holding device is torqued or tightened per the toolholder manufacturer's specifications. Confirm coolant lines are clear and delivering adequate flow before commencing through-tool coolant operation.