Chicago-latrobe 47302 Jobber Drill Bit 6.60mm Hss

Product Description

The CHICAGO-LATROBE 47302 is a high-speed steel (HSS) jobber-length drill bit designed for general-purpose drilling in steel and cast iron. It measures 6.60 mm (0.2598 inches) in diameter with a standard 118-degree point angle and a black oxide coating that reduces friction and provides mild corrosion resistance. The overall length is 101.00 mm (3.98 inches), with a 63.00 mm (2.48 inches) flute length. A tapered web with web-thinning geometry reduces thrust at the cutting tip, making it a practical choice for production and maintenance drilling where consistent performance is required across multiple holes.

This drill bit is suited for drilling steel and cast iron in both shop and field environments. It fits standard drill chucks via its straight cylindrical shank and is appropriate for use in drill presses, hand drills, and CNC machines running moderate feeds and speeds. The right-hand cut and regular spiral flute promote efficient chip evacuation in the materials it is rated for. It conforms to DIN 338, a widely recognized standard for jobber-length twist drills, making it a reliable specification-grade option for metalworking tradespeople, machinists, and maintenance technicians.

Key Features

• 6.60 mm (0.2598 inches) diameter with diameter tolerance of -0.0010 to 0.0000 inches for controlled fit
• 118-degree standard point angle with web-thinned, tapered web for reduced drilling thrust
• Black oxide coating for friction reduction and mild surface protection
• High-speed steel construction rated for steel and cast iron workpieces
• Regular spiral, right-hand cut with 2 flutes for consistent chip removal
• Conforms to DIN 338 specification for jobber-length twist drills

Compatibility

Designed for general-purpose drilling in steel and cast iron. Straight cylindrical shank fits standard drill chucks. Conforms to DIN 338 Series 150 jobber-length drill bit specifications.

Installation Notes

Installation and use should be performed by a qualified machinist or maintenance technician familiar with metal drilling practices. Secure the workpiece and ensure the chuck is properly tightened before operation. Apply appropriate cutting fluid when drilling ferrous metals to extend tool life and maintain hole quality. Inspect the drill point for wear or chipping before each use and replace when cutting performance degrades.