Walter-titex 6618390 Carbide Jobber Drill 0.4060 in Tialn

Product Description

The WALTER-TITEX 6618390 is a solid carbide jobber drill designed for precision drilling in demanding industrial and metalworking applications. With a 0.4060-inch diameter and a 140-degree point angle, this drill delivers clean entry and controlled chip evacuation across a wide range of workpiece materials. The TiAlN coating improves heat resistance and extends tool life under high-speed cutting conditions. At 4.6457 inches overall length with a 2.0300-inch flute length, the 6618390 fits standard machining setups requiring a 5xD flute-to-diameter ratio. It is configured for right-hand cutting with a regular spiral flute pattern and is available with coolant-through capability for optimized chip clearing in deep or blind hole applications.

This drill is suited for production machining environments where consistent hole quality across cast iron, non-ferrous metals, steel, superalloys, and titanium is required. The DC150 series is engineered for blind hole drilling and stack drilling operations. The whistle notch shank, measuring 0.4720 inches in diameter, provides positive drive and reduces slippage in compatible toolholding systems. Machinists, tool-and-die shops, aerospace fabricators, and general metalworking facilities will find this drill appropriate for both CNC and manual machine applications.

Key Features

• Solid carbide construction for rigidity and long tool life in hard and abrasive materials
• TiAlN coating for elevated heat resistance and extended cutting performance
• 140-degree point angle reduces thrust and improves centering on entry
• Coolant-through design supports chip evacuation in blind hole and stack drilling
• Whistle notch shank provides positive retention and anti-rotation in compatible holders
• Manufactured to ANSI and ISO standards with m7 diameter tolerance

Compatibility

The 6618390 is part of the WALTER-TITEX DC150 series and is rated for use in cast iron, non-ferrous metals, steel, superalloys, and titanium workpieces. Compatible with toolholders accepting a 0.4720-inch whistle notch shank. Appropriate for blind hole and stack drilling applications on CNC machining centers equipped with coolant-through spindle capability.

Installation Notes

This drill should be installed by a qualified machinist or tooling technician familiar with carbide tooling handling procedures. Ensure the machine spindle and coolant system are fully powered down before changing tooling. Secure the whistle notch shank firmly in the holder to the manufacturer-specified clamping procedure to prevent pullout during high-feed operation. Avoid impact or dropping of solid carbide tools, as the material is brittle and susceptible to chipping from mechanical shock.