Walter-titex 6618300 Carbide Jobber Drill Bit 0.138 in

Product Description

The WALTER-TITEX 6618300 is a solid carbide jobber-length drill bit designed for high-performance drilling in demanding production environments. Measuring 0.138 inches in diameter with an overall length of 2.598 inches, this bit features a TiAlN coating that extends tool life in abrasive and high-heat applications. The 140-degree drill point angle promotes fast, accurate engagement and reduces thrust force on entry. The whistle notch shank provides positive drive retention in compatible chucks. With a 2-flute spiral design and right-hand cut geometry, this bit is suited for both blind hole drilling and stack drilling operations performed by machinists and manufacturing maintenance technicians.

This drill bit is built for use on cast iron, non-ferrous metals, steel, superalloys, and titanium workpieces, covering a wide range of industrial machining scenarios. The Series DC150 designation places it in a line engineered for process reliability across short-run and production floor applications. Its 5xD flute-to-diameter ratio and coolant-through capability support consistent chip evacuation when used with through-coolant spindle setups. Typical applications include blind hole work and stack drilling where precision entry geometry and coating durability matter.

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 point angle reduces thrust and supports fast, clean entry
• Coolant-through design aids chip evacuation in blind hole and stack drilling
• Whistle notch shank provides positive rotational drive in compatible tool holders
• Meets ANSI and ISO standards; Series DC150 with 5xD flute ratio

Compatibility

Designed for use in CNC machining centers and drill presses equipped with whistle notch or compatible round-shank tool holders. Rated for primary workpiece materials including cast iron, non-ferrous metal, steel, superalloys, and titanium per material codes K, N, P, and S. Suitable for blind hole and stack drilling applications per the DC150 series specification.

Installation Notes

Installation and use should be performed by qualified machinists familiar with cutting tool setup and machine tool operation. Ensure the spindle is fully stopped and the machine is locked out before changing tooling. Verify shank seating in the tool holder and confirm coolant-through passages are clear if using through-coolant capability. Do not exceed the recommended maximum drilling depth of 0.690 inches as specified for this tool.