Chicago-latrobe 47293 Jobber Drill 5.80mm Hss Black Oxide

Product Description

The CHICAGO-LATROBE 47293 is a jobber-length twist drill bit designed for general-purpose hole-making in steel and cast iron. Built from high speed steel (HSS) with a black oxide coating, it measures 5.80 mm (0.2283 inches) in diameter and carries a standard 118-degree split point for consistent starting without a center punch. Overall length is 93.00 mm (3.6614 inches), with a flute length of 57.00 mm (2.2441 inches). The straight cylindrical shank and regular spiral flute geometry make it compatible with standard drill chucks across a wide range of drilling equipment. This bit conforms to DIN 338 specifications and is suited for production and maintenance drilling operations.

This bit is intended for use in metal fabrication, maintenance, and general shop applications where drilling into steel or cast iron is required. The jobber-length format is the standard choice for through-hole and blind-hole work in both bench-top and hand-held drilling setups. The black oxide finish provides moderate lubricity and corrosion resistance, extending tool life in repetitive drilling tasks. It is appropriate for machinists, maintenance technicians, ironworkers, and fabricators working with ferrous materials in light-to-medium duty applications.

Key Features

• 5.80 mm (0.2283 inches) diameter, DIN 338 jobber-length format
• 118-degree standard point angle for general-purpose entry into steel and cast iron
• High speed steel construction with black oxide coating for improved lubricity and wear resistance
• Web-thinned, tapered web configuration reduces thrust requirements during drilling
• Right-hand cutting, regular spiral flute for efficient chip evacuation
• Straight cylindrical shank fits standard drill chucks without adapters

Compatibility

Designed as a general-purpose jobber drill bit for use in standard drill chucks and drilling equipment where DIN 338 metric sizing is specified; suitable for ferrous workpiece materials including steel and cast iron.

Installation Notes

Install the shank fully into a properly sized drill chuck and tighten securely before operation. Ensure the workpiece is clamped or fixtured to prevent movement during drilling. Use appropriate cutting fluid when drilling steel to reduce heat buildup and extend bit life. Inspect the cutting edges before use and replace the bit if chipping or excessive wear is present.