Walter-titex 6618620 Solid Carbide Jobber Drill 3.50 Mm

Product Description

The WALTER-TITEX 6618620 is a solid carbide jobber-length drill bit designed for high-performance drilling in demanding industrial and trade applications. Built to Series DC150-08-A1 specifications, it features a 3.50 mm diameter, a 140-degree split point, and a TiNAl (titanium aluminum nitride) coating that extends tool life under high heat and abrasion conditions. The straight cylindrical shank measures 6 mm in diameter. With a 2-flute right-hand cutting geometry and coolant-through capability, this drill maintains chip evacuation and thermal control across tough workpiece materials. It is installed by machinists, tooling technicians, and CNC operators in production and job-shop environments.

This drill is suited for blind-hole drilling and stack drilling operations. Compatible primary workpiece materials include cast iron, aluminum and non-ferrous metals, steel, and high-temperature alloys, corresponding to material codes K, N, P, and S. The 8xD flute-to-diameter ratio supports deeper penetration relative to bit diameter. With an overall length of 74.00 mm (2.913 inches) and a maximum drilling depth of 28.00 mm (1.102 inches), it fits standard CNC machining centers and drill presses equipped for small-diameter carbide tooling. Drill bit grade is WJ30TA.

Key Features

• Solid carbide construction with TiNAl coating for extended wear resistance in abrasive and high-temp materials
• 140-degree point angle reduces thrust and improves self-centering at entry
• Coolant-through design promotes chip flushing and heat management in deep blind holes
• Right-hand, 2-flute geometry optimized for cast iron, steel, aluminum, and high-temp alloys
• Straight cylindrical shank compatible with standard collets and drill chucks
• Meets ANSI and ISO standards; tolerance class m7 on drill diameter

Compatibility

Designed for use in CNC machining centers, drill presses, and automated drilling equipment accepting a 6 mm straight shank. Suitable for workpiece materials classified under ISO codes K (cast iron), N (aluminum and non-ferrous), P (steel), and S (high-temperature alloys). Part of the Walter DC150-08-A1 series, sized within the 3.00 mm to 4.00 mm drill diameter range.

Installation Notes

Installation and tool changes should be performed by qualified machinists or CNC technicians with the machine in a fully stopped and locked-out state per applicable machine safety standards. Secure the shank fully in the collet or chuck to the recommended grip depth before operation. Verify coolant-through lines are clear and properly connected before running the spindle. Do not exceed the manufacturer-rated maximum drilling depth of 28.00 mm per cycle without re-evaluating chip load and coolant flow.