Chicago-latrobe 50463 Extra Length Drill Bit 0.1406 in Hss

Product Description

The CHICAGO-LATROBE 50463 is an extra length, high speed steel drill bit designed for long reach drilling applications in metal fabrication, maintenance, and industrial trades. Built to Series 120X specs, it features a 118-degree notched point with web thinning for easier starts and reduced thrust on entry. The 0.1406-inch diameter runs the full 8-inch overall length with a 5.5-inch spiral flute, giving technicians the reach needed to drill through deep sections or hard-to-access areas that standard-length bits cannot address. The oxide finish provides mild corrosion resistance and helps reduce friction during cutting.

This bit is suited for drilling cast iron and steel in applications where extended reach is required, such as deep-hole work in structural assemblies, machinery frames, or long-distance through-bores. The straight-cylindrical shank accepts standard drill chucks without adapters, making it compatible with hand drills, drill presses, and magnetic base drills commonly used in fabrication and field service work. The right-hand cutting direction and regular spiral type are consistent with general-purpose metal drilling workflows.

Key Features

• 0.1406-inch diameter with a tight tolerance of +0.0000 to -0.0007 inches for accurate, repeatable holes
• 8-inch overall length with a 5.5-inch flute for extended reach in deep or obstructed drilling locations
• 118-degree notched point with web thinning reduces walking and lowers required feed force
• High speed steel construction maintains cutting edge integrity across cast iron and steel workpieces
• Oxide finish reduces surface friction and provides light corrosion resistance during storage and use
• Tapered web and 2-flute spiral design promote chip evacuation in deep-hole drilling

Compatibility

Designed for general-purpose long reach drilling in cast iron and steel. The straight-cylindrical shank fits standard drill chucks sized for 0.1406-inch shanks on hand drills, drill presses, and magnetic base drilling equipment.

Installation Notes

Installation of this bit is performed by machinists, tool and die workers, ironworkers, and maintenance mechanics. Secure the straight shank firmly in the chuck before operation and verify the chuck key is removed before powering the drill. Use appropriate cutting fluid or coolant when drilling steel to extend bit life, even though this bit is not rated for coolant-through delivery. Follow applicable shop safety practices and OSHA standards for rotating cutting tools.