Walter-titex 5059334 Jobber Drill Bit Letter L 0.290 in Hss

Product Description

The WALTER-TITEX 5059334 is a jobber-length twist drill bit sized at Letter L, equivalent to 0.290 inches in decimal, designed for high-performance drilling in production and maintenance applications. Built from high speed steel with an oxide finish coating, it features a parabolic flute geometry and a 130-degree split-point angle. The straight-cylindrical shank measures 0.290 inches in diameter and seats securely in standard drill chucks. With an overall length of 4-9/32 inches and a flute length of 2-23/32 inches, this bit handles blind hole drilling and stack drilling operations where chip evacuation and hole accuracy are priorities. Web thinning reduces entry force and helps center the bit without a pilot hole.

This drill bit is suited for metal fabrication shops, machine shops, and maintenance crews working with cast iron, non-ferrous metals, and steel. The parabolic flute profile moves chips out of the cut zone efficiently, making it a practical choice for stack drilling operations and production runs where consistency matters. It is sold individually and is appropriate for use in standard drill presses, CNC machining centers, and handheld power drills where straight-cylindrical shank tooling is specified. The Series A1222 designation places it within a defined product family built to ANSI and ISO standards.

Key Features

• Letter L size at 0.290 inches decimal — compatible with standard chucks and collet sets
• 130-degree point angle with web thinning for reduced entry force on ferrous and non-ferrous materials
• Parabolic flute design promotes efficient chip evacuation in blind hole and stack drilling
• Oxide coating on high speed steel substrate improves surface hardness and wear resistance
• Straight-cylindrical shank with h8 diameter tolerance for consistent chuck fit
• Conforms to ANSI and ISO standards; specification designation includes BS and DIN

Compatibility

Rated for drilling cast iron, non-ferrous metals, and steel. Suitable for blind hole and stack drilling applications. Designed to fit standard drill chucks and collet systems accepting a 0.290-inch straight-cylindrical shank.

Installation Notes

This bit is installed by a machinist or maintenance technician in a drill press, CNC spindle, or handheld power drill rated for the shank diameter. Secure the shank fully in the chuck or collet before operation and verify runout before beginning a production run. Always power down and de-energize the machine before changing tooling. Wear appropriate eye protection and follow facility-specific machine guarding requirements when drilling metal.