Walter-titex 5058391 Jobber Drill Bit 0.29mm Hss Oxide

Product Description

The WALTER-TITEX 5058391 is a jobber-length twist drill bit designed for precision drilling in cast iron and steel. It measures 0.29 mm (0.0114 inches) in diameter with an overall length of 19.00 mm (0.75 inches). The bit is manufactured from high speed steel with an oxide coating for improved wear resistance. The standard 118-degree point angle and web-thinned, tapered web configuration reduce entry force and improve chip evacuation. With a two-flute spiral design and regular spiral type, this bit maintains accuracy in both blind hole and stack drilling applications. It is sized for fine-tolerance work, holding a diameter tolerance of h8 per ANSI, ISO, BS, and DIN standards.

This drill bit is suited for production and maintenance drilling in cast iron and steel workpieces. The 8xD flute-to-diameter ratio and 3.00 mm flute length make it appropriate for shallow-depth applications with a maximum drilling depth of 2.50 mm (0.098 inches). Typical use cases include precision hole drilling in metalworking, light manufacturing, and toolroom environments. The straight-cylindrical shank fits standard drill chucks without adapters, making it compatible with benchtop drill presses, CNC machining centers, and hand-held power drills capable of accepting the 0.0114-inch shank diameter.

Key Features

• 0.29 mm (0.0114 inches) diameter with h8 tolerance for precision fitment
• 118-degree standard point angle with web-thinned, tapered web for reduced entry force
• High speed steel construction with oxide coating for wear resistance
• Two-flute regular spiral design supports chip clearance in blind hole and stack drilling
• Straight-cylindrical shank fits standard chucks without modification
• Meets ANSI, ISO, BS, and DIN specification designations

Compatibility

Designed for drilling cast iron and steel workpieces. Series A1211 jobber-length drill bit with a straight-cylindrical shank compatible with drill chucks accepting 0.0114-inch shank diameters.

Installation Notes

Installation and use should be performed by qualified machinists or tool and die technicians. Secure the straight-cylindrical shank fully in a properly rated drill chuck before operation. Power down and de-energize any machine spindle before changing bits. At this diameter, use appropriate low-speed, high-feed settings to avoid bit deflection or breakage, and confirm chuck runout is within acceptable tolerance for precision hole quality.