Walter-titex 5059326 Jobber Drill Bit Letter D Hss

Product Description

The WALTER-TITEX 5059326 is a jobber length drill bit sized to Letter D (0.2460 inches diameter), designed for high-performance drilling in cast iron, non-ferrous metals, and steel. Built from high speed steel with an oxide coating, this bit features a parabolic flute geometry and a 130-degree split point for improved chip evacuation and reduced thrust in demanding applications. The web-thinned, tapered web configuration supports clean entry, especially in blind hole and stack drilling scenarios. Licensed trades and machining professionals working across metalworking and fabrication environments are the primary users of this tool.

This bit is suited for blind hole drilling and stack drilling operations in residential, commercial, and industrial settings. The straight-cylindrical shank seats securely in standard drill chucks. The parabolic flute design with an 8xD flute-to-diameter ratio helps clear chips efficiently in deeper cuts. Primary workpiece materials include cast iron, non-ferrous metals, and steel, making this bit a reliable choice for HVAC, plumbing, electrical, and general mechanical trade applications where accurate hole placement in metal stock is required.

Key Features

• Letter D size at 0.2460 inches diameter with h8 diameter tolerance for consistent fit
• 130-degree standard point angle with web-thinned, tapered web for reduced entry force
• Parabolic flute geometry at 8xD ratio for efficient chip evacuation in deeper holes
• Oxide coating on high speed steel substrate for improved lubricity and heat resistance
• Right-hand cut with straight-cylindrical shank for compatibility with standard drill chucks
• Rated for blind hole and stack drilling applications per ANSI and ISO standards

Compatibility

Designed for use with standard drill chucks accepting a 0.2460-inch straight-cylindrical shank. Suitable for drilling cast iron, non-ferrous metals, and steel workpieces in applications conforming to ANSI, ISO, BS, and DIN specifications under Series A1222.

Installation Notes

Installation and use should be performed by qualified machinists or licensed tradespeople familiar with metal drilling procedures. Ensure the workpiece is securely clamped and the drill chuck is tightened before operation. This bit does not support coolant-through delivery, so external coolant or cutting fluid should be applied at the work surface when drilling deep holes or heat-sensitive materials. Follow applicable ANSI safety standards for drilling operations, including appropriate PPE for metal chip hazards.