Walter-titex 6618074 Screw Machine Drill Bit 4.30mm

Product Description

The WALTER-TITEX 6618074 is a solid carbide screw machine length drill bit designed for high-productivity drilling in steel and cast iron. It measures 4.30 mm (0.1690 inches) in diameter with a 140-degree split point geometry that reduces thrust and improves entry accuracy. The TiNAl coating extends tool life in ferrous materials by resisting heat buildup at elevated cutting speeds. With an overall length of 3 inches and a flute length of 0.507 inches, this stub-length configuration maximizes rigidity and minimizes deflection in short-reach drilling operations. Licensed machinists, tool-and-die technicians, and CNC setup operators are the primary users of this bit.

This drill bit is suited for screw machine operations, CNC turning centers, and drill press applications where hole quality and dimensional consistency in steel and cast iron are critical. The straight cylindrical shank at 0.236 inches diameter fits standard collets and chucks used in production machining environments. The 3xD flute-to-diameter ratio supports chip evacuation in short, through-hole drilling cycles. It follows DIN and ISO standards, making it a reliable fit for both domestic and internationally spec'd machining work.

Key Features

• Solid carbide construction provides rigidity and wear resistance in ferrous materials
• TiNAl proprietary coating resists heat and extends cutting life in steel and cast iron
• 140-degree special point reduces thrust and improves hole entry stability
• 3-flute design promotes efficient chip evacuation in production drilling
• Screw machine (stub) length maximizes stiffness and minimizes runout risk
• Meets DIN and ISO standards for dimensional consistency and interchangeability

Compatibility

Designed as an OEM-style production drill for use in steel and cast iron workpieces; compatible with standard straight-shank collets and drill chucks accepting a 0.236-inch shank diameter. Part of the WALTER-TITEX Series DC150-03-A0.

Installation Notes

This bit is installed by machinists in CNC equipment, screw machines, or manual drill presses using a compatible collet or drill chuck. Ensure the machine spindle is fully stopped and locked out before tool changes. Verify collet size matches the 0.236-inch straight shank before tightening. Follow the machine tool manufacturer guidelines and applicable shop safety procedures when setting cutting parameters for carbide tooling in ferrous materials.