Chicago-latrobe 47264 Jobber Drill Bit 3.4mm Hss Oxide

Product Description

The CHICAGO-LATROBE 47264 is a jobber-length twist drill bit designed for general-purpose metal drilling in professional and industrial trade applications. Built from high speed steel with an oxide coating, the bit measures 3.4 mm in diameter (0.1339 inches) with an overall length of 70 mm (2.756 inches) and a flute length of 39 mm (1.535 inches). The 118-degree standard point angle and web-thinned, tapered web geometry promote accurate starting and efficient chip evacuation. It features a straight-cylindrical shank and right-hand spiral flutes, conforming to DIN 338 standards.

This drill bit is suited for drilling cast iron and steel in fabrication, maintenance, and trade service environments. The Series 150 jobber-length format is a common shop standard used by machinists, pipefitters, ironworkers, and general tradespeople who need a reliable general-purpose bit for hand drills, drill presses, and CNC machines. The regular spiral flute pattern handles a wide range of ferrous materials without specialized tooling setups.

Key Features

• High speed steel construction with oxide coating for wear resistance on ferrous materials
• 118-degree standard point angle with web-thinned, tapered web for improved centering and reduced thrust
• Right-hand cut, regular spiral flute design for efficient chip removal
• Straight-cylindrical shank compatible with standard drill chucks
• Conforms to DIN 338 specification for consistent jobber-length dimensions
• General-purpose grade suitable for cast iron and steel workpieces

Compatibility

Designed as a general-purpose jobber-length drill bit for use in standard drill chucks accepting a 0.1339-inch straight-cylindrical shank, compatible with hand drills, drill presses, and machine tools requiring DIN 338 Series 150 bits.

Installation Notes

Install and remove drill bits only with the drill unpowered and the chuck fully secured. Machinists and tradespeople should verify chuck size compatibility before seating the shank. Use appropriate cutting fluid or coolant when drilling steel at higher feed rates to extend bit life. Dispose of worn or chipped bits according to shop safety protocols — do not attempt to re-sharpen without proper grinding equipment.