Walter-titex 6618399 Solid Carbide Jobber Drill 0.4330 in

Product Description

The WALTER-TITEX 6618399 is a solid carbide jobber-length drill bit designed for high-performance hole-making in demanding materials. It features a 140-degree point angle optimized for fast penetration and self-centering, along with a TiAlN coating that extends tool life under high heat and abrasion. The whistle notch shank seats securely in standard toolholders. With an overall length of 4.6457 inches and a flute length of 2.1650 inches, this drill is built for productive use in machining centers and drill presses where accuracy and tool longevity are critical. Installation and operation are performed by machinists and tool-and-die professionals.

This drill is rated for use in cast iron, non-ferrous metals, steel, superalloys, and titanium. It is suited to blind hole drilling and stack drilling applications. The DC150 series designation reflects a 5xD flute-to-diameter ratio, giving adequate chip clearance in deeper passes. The coolant-through design supports internal coolant delivery, making it compatible with CNC machining centers equipped with through-spindle coolant systems. Right-hand spiral flutes eject chips efficiently in standard right-hand rotation setups.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard and abrasive materials
• TiAlN coating provides high-temperature resistance and extended tool life
• 140-degree point angle for fast engagement and reduced thrust on entry
• Coolant-through design supports internal coolant delivery for deep-hole applications
• Whistle notch shank for positive retention in compatible toolholders
• Suitable for blind hole and stack drilling operations

Compatibility

Designed for use in CNC machining centers and drill presses with toolholders accepting a 0.4720-inch shank diameter. Primary workpiece materials include cast iron, non-ferrous metal, steel, superalloys, and titanium. Conforms to ANSI and ISO standards with ISO specification designation and material codes K, N, P, and S.

Installation Notes

This drill bit is installed and operated by qualified machinists. Before mounting, ensure the machine spindle and toolholder are clean and free of debris to achieve proper seating of the whistle notch shank. Confirm that the machine is fully stopped and locked out before changing tooling. When using coolant-through capability, verify that the coolant system pressure and flow rate are compatible with the machine spindle specifications.