Walter-titex 5058832 Jobber Drill Bit 7.8 Mm Hss

Product Description

The WALTER-TITEX 5058832 is a jobber-length twist drill bit designed for general-purpose drilling in cast iron and steel. The bit is manufactured from high speed steel with an oxide coating that reduces friction and extends tool life in production environments. At 7.8 mm (0.3071 inches) in diameter, it carries a 118-degree standard point angle and a web-thinned, tapered web geometry that reduces thrust on entry. With an overall length of 117 mm (4-39/64 inches) and a flute length of 75 mm (2-61/64 inches), it fits standard drill chucks accepting a 0.3071-inch straight-cylindrical shank. Licensed machinists, maintenance technicians, and metal fabricators are the primary users of this tool.

This drill bit is suited for blind hole drilling and stack drilling operations on cast iron and steel workpieces. The Series A1211 designation places it within a high-performance jobber-length family conforming to ANSI, ISO, BS, and DIN standards. Its 8xD flute-to-diameter ratio supports chip evacuation in moderate-depth holes up to 62 mm (2.4410 inches) maximum drilling depth, making it appropriate for both production and maintenance repair operations on machine tools, fabrication fixtures, and structural steel assemblies.

Key Features

• High speed steel construction with oxide coating for reduced friction and extended service life
• 118-degree standard point angle with web thinning for lower entry thrust on ferrous materials
• Spiral regular flute, right-hand cut, optimized for cast iron and steel (material codes K and P)
• Straight-cylindrical shank at 0.3071 inches diameter fits standard three-jaw chucks and drill presses
• Maximum drilling depth of 62 mm (2.4410 inches) with 8xD flute-to-diameter ratio for reliable chip clearance
• Meets ANSI, ISO, BS, and DIN specification designations; diameter tolerance class h8

Compatibility

Designed as an OEM-style replacement and standard production drill bit for use in handheld drills, drill presses, and CNC machining centers accepting a straight-cylindrical shank in the 0.3000 to 0.3500 inch diameter range.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or maintenance technicians familiar with metal-cutting operations. Secure the shank fully in the chuck and verify concentricity before starting the spindle. Power down and de-energize the machine before changing bits or clearing chips from the flutes. Use appropriate cutting fluid or coolant for the workpiece material to maintain tool life, noting that this bit does not support through-coolant delivery.