Walter-titex 5059502 Jobber Drill Bit 5/16 Inch Hss

Product Description

The WALTER-TITEX 5059502 is a jobber length drill bit engineered for high-performance drilling in cast iron, non-ferrous metals, and steel. Built from high speed steel with an oxide coating, it features a parabolic flute geometry and a web-thinned, tapered web configuration that reduces thrust and improves chip evacuation. The 130-degree split point promotes accurate starts without center-punching. With an overall length of 4-19/32 inches and a flute length of 2-15/16 inches, this bit handles blind hole and stack drilling applications where consistent depth control and chip clearance are critical. It is part of the Series A1222 line and carries both ANSI and ISO standard designations.

This drill bit is suited for metalworking and fabrication environments where operators drill into steel, cast iron, and non-ferrous materials. It is sized at 5/16 inch diameter with a straight-cylindrical shank of equal diameter, making it compatible with standard drill chucks on drill presses, CNC machining centers, and hand-held power drills. Rated for blind hole and stack drilling applications, it performs in production and maintenance settings where repeatable accuracy and longer bit life are required.

Key Features

• 5/16 inch (0.3125 inch) diameter with h8 tolerance for precise fit in standard chucks
• 130-degree drill point angle for fast penetration and self-centering starts
• Parabolic flute design with 8xD flute-to-diameter ratio promotes efficient chip removal
• Web-thinned, tapered web reduces cutting resistance in blind hole and stack drilling
• Oxide coating on high speed steel substrate extends tool life in ferrous and non-ferrous materials
• Meets ANSI and ISO standards; specification designation includes BS and DIN

Compatibility

Designed for use in cast iron, non-ferrous metal, and steel workpieces. Fits any standard drill chuck accepting a 5/16 inch straight-cylindrical shank. Suitable for drill presses, CNC equipment, and portable power drills used in metalworking and fabrication applications.

Installation Notes

This bit is installed and used by machinists, fabricators, and maintenance technicians. Secure the straight shank firmly in the chuck before operation and verify runout is within acceptable limits. For stack drilling, clamp workpieces securely to prevent shifting during the cut. Do not exceed the recommended maximum drilling depth of 2.441 inches for the given flute geometry.