Walter-titex 6618068 Screw Machine Drill Bit 3.80mm

Product Description

The WALTER-TITEX 6618068 is a screw machine length solid carbide drill bit designed for high-performance drilling in steel and cast iron. Built to Series DC150-03-A0 standards, it measures 3.80 mm (0.1500 inches) in diameter with a 140-degree special point angle and a TiNAl coating that extends tool life in demanding production environments. At 3 inches overall length with a 29/64-inch flute length, this stub-length bit provides rigidity and accuracy in short-hole drilling applications. It is installed and used by machinists, tool-and-die technicians, and maintenance professionals working with metalcutting equipment.

This drill bit is suited for screw machine operations, CNC machining centers, and general metalworking applications where a compact, rigid cutting tool is required. Its primary workpiece materials are steel and cast iron, making it a practical choice for production drilling of ferrous components. The 3xD flute-by-diameter ratio supports chip evacuation in shallow holes up to 0.4500 inches deep. The straight cylindrical shank with a 0.2360-inch diameter fits standard drill chucks and collet holders across a wide range of machine tool setups.

Key Features

• Solid carbide construction delivers hardness and wear resistance for ferrous metalcutting
• TiNAl coating improves heat resistance and extends cutting life in steel and cast iron
• 140-degree special point angle reduces thrust and improves centering on entry
• Screw machine (stub) length provides maximum rigidity and minimizes deflection
• Regular spiral flute geometry supports consistent chip evacuation in shallow holes
• Manufactured to DIN and ISO standards with m7 diameter tolerance for precise fit

Compatibility

Designed for use in screw machines, CNC machining centers, and drill presses equipped with chucks or collets accepting a 0.2360-inch straight cylindrical shank. Rated for drilling steel and cast iron workpieces. Part of the WALTER-TITEX DC150-03-A0 series covering drill bit sizes from 3.50 mm to 5.00 mm (0.1500 to 0.2000 inches decimal inch range).

Installation Notes

Installation is performed by machinists or tool-setup technicians. Always power down and lock out the machine before changing tooling. Seat the shank fully and evenly in the chuck or collet to the manufacturer-specified grip depth before tightening. Do not exceed the maximum drilling depth of 0.4500 inches without retracting to clear chips, as this bit does not support coolant-through delivery.