Chicago-latrobe 41623 Jobber Drill Bit 23/64 in Hss Tin

Product Description

The CHICAGO-LATROBE 41623 is a jobber-length drill bit designed for heavy-duty metal drilling in professional trade and industrial applications. Built from high-speed steel with a titanium nitride (TiN) coating, it delivers extended wear resistance and reduced friction during cutting. The 135-degree split point provides fast penetration and self-centering entry, reducing the need for a center punch on most surfaces. At 4-7/8 inches overall length with a 3-1/2-inch flute, this bit fits standard drill chucks and fits well in hand drills, drill presses, and magnetic base drills used in mechanical and fabrication work.

This drill bit is suited for drilling cast iron, stainless steel, and carbon steel in both shop and field environments. Machinists, pipefitters, ironworkers, and HVAC fabricators reach for this size when drilling hole patterns for fasteners, conduit knockouts, or flange work. The 23/64-inch diameter is a common pre-tap size and is frequently used ahead of threading operations. The straight-cylindrical shank accepts standard 3-jaw drill chucks without requiring a specialized holder.

Key Features

• High-speed steel construction with titanium nitride coating for extended tool life
• 135-degree split point for self-centering entry and reduced thrust on hard metals
• Right-hand, regular-spiral flute geometry for efficient chip evacuation
• Web-thinned, tapered web configuration reduces cutting resistance
• Straight-cylindrical shank fits standard drill chucks
• Meets NAS 907 Type B specification for heavy-duty performance

Compatibility

Designed for use in standard 3-jaw drill chucks on hand drills, drill presses, and magnetic base drills. Primary workpiece materials include cast iron, stainless steel, and steel as specified by the manufacturer.

Installation Notes

This bit is installed and removed by a licensed machinist, pipefitter, or qualified tradesperson using a standard 3-jaw chuck key. Secure the workpiece firmly before drilling and use appropriate cutting fluid when drilling stainless steel or hard alloys to manage heat buildup. Inspect the cutting edge before each use and replace the bit if chipping or coating wear is visible. Follow applicable shop safety and OSHA standards for rotating tool operation.