Walter-titex 6618321 Carbide Jobber Drill Bit 0.197 in

Product Description

The WALTER-TITEX 6618321 is a solid carbide jobber-length drill bit designed for high-performance drilling in demanding industrial and trade applications. Built to Series DC150 standards, it features a TiAlN coating that extends tool life in abrasive materials and high-heat cutting conditions. The bit measures 0.197 inches in diameter with an overall length of 3.228 inches and a spiral flute length of 0.985 inches. A 140-degree drill point angle reduces thrust and improves centering, while the right-hand spiral flute geometry promotes efficient chip evacuation. Coolant-through capability supports deeper, cleaner holes in production environments.

This drill bit is suited for blind hole drilling and stack drilling operations across a range of workpiece materials including cast iron, non-ferrous metals, steel, superalloys, and titanium. The whistle notch shank provides positive drive retention in compatible collet and chuck systems. With a 5xD flute-to-diameter ratio, the DC150 series is built for precision work in metalworking, aerospace component fabrication, and general machining shops where tool runout and hole quality are critical. It is typically installed and used by machinists and tool and die professionals in CNC and manual drill press setups.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard and abrasive materials
• TiAlN coating improves heat resistance and extends tool life in steel, superalloys, and titanium
• 140-degree drill point angle reduces cutting force and improves self-centering
• Coolant-through design supports chip flushing and heat management in blind hole applications
• Whistle notch shank provides secure positive drive in compatible toolholders
• Right-hand spiral flute with 5xD ratio optimized for blind hole and stack drilling

Compatibility

Designed for use in materials coded K (cast iron), N (non-ferrous metals), P (steel), and S (superalloys and titanium) per ISO workpiece material classification. Suitable for applications requiring blind hole or stack drilling per Series DC150 design parameters. Conforms to ANSI and ISO standards.

Installation Notes

This bit is installed and operated by machinists using CNC machining centers, manual drill presses, or compatible rotary toolholding systems. Verify that the toolholder accepts a whistle notch shank with a 0.236-inch shank diameter before mounting. Engage coolant-through supply lines prior to initiating cuts in superalloys or titanium to prevent thermal damage to the cutting edge. Inspect the drill point and flute condition before each use and replace at first signs of edge chipping or coating wear.