Walter-titex 6618377 Jobber Drill Bit 0.366 in Solid Carbide

Product Description

The WALTER-TITEX 6618377 is a solid carbide jobber length drill bit designed for high-performance drilling in demanding production environments. It measures 0.366 inches in diameter with an overall length of 4.055 inches and features a TiAlN (titanium aluminum nitride) coating that extends tool life in abrasive and heat-intensive applications. The 140-degree split point geometry reduces thrust and improves centering accuracy on entry. Two spiral flutes with a 5xD flute-to-diameter ratio clear chips efficiently during through and blind hole operations. A whistle notch shank with a 0.394-inch shank diameter ensures positive drive retention in compatible toolholders. This bit is part of the DC150 series and is installed by machinists and toolroom technicians in CNC and manual drilling applications.

This drill bit is suited for blind hole drilling and stack drilling operations across a wide range of workpiece materials. It is rated for cast iron, non-ferrous metals, steel, superalloys, and titanium, making it a versatile choice for aerospace, automotive, and general metalworking production. Coolant-through capability supports through-spindle coolant delivery for improved chip evacuation and thermal control at depth. The maximum drilling depth matches the flute length at 1.830 inches. The DC150 series is built to ANSI and ISO standards and carries an m7 diameter tolerance for consistent fit in close-tolerance applications.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard and abrasive materials
• TiAlN coating for extended tool life and heat resistance during high-speed cutting
• 140-degree point angle with proprietary point geometry for accurate self-centering on entry
• Coolant-through design supports through-spindle coolant delivery for deep hole and stack drilling
• Whistle notch shank provides positive drive and prevents pullout in standard toolholders
• Meets ANSI and ISO standards with m7 diameter tolerance for precision fitment

Compatibility

Designed for use with toolholders that accept a 0.394-inch whistle notch shank. Rated for drilling cast iron, non-ferrous metals, steel, superalloys, and titanium. Suitable for CNC machining centers and drill presses where through-spindle coolant is available. Part of the WALTER-TITEX DC150 series.

Installation Notes

Installation is performed by machinists or toolroom technicians. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the whistle notch shank fully into the toolholder and verify set screw engagement before running. Confirm coolant line pressure and flow rate are appropriate for the workpiece material and cutting depth before initiating a cycle.