Chicago-latrobe 50737 Extra Length Drill Bit 0.2656 in Hss

Product Description

The CHICAGO-LATROBE 50737 is an extra length high speed steel drill bit designed for long-reach drilling applications where standard-length bits fall short. It measures 0.2656 inches in diameter with a 12-inch overall length and a 9-inch flute length, giving tradespeople and machinists the reach needed to drill deep holes in tight or extended setups. The 118-degree notched point provides reliable centering and clean entry, while the oxide finish reduces friction and extends tool life. The 2-flute spiral design evacuates chips efficiently in right-hand cutting operations.

This drill bit is suited for metalworking applications involving cast iron and steel. The extra length and straight-cylindrical shank make it a practical choice for fabrication shops, maintenance machinists, pipefitters, and industrial trades that regularly encounter deep drilling or hard-to-access bore locations. The web-thinned, tapered web configuration reduces thrust requirements when drilling into harder ferrous materials. It belongs to the CHICAGO-LATROBE 120X series, a general-purpose line engineered for production and maintenance drilling environments.

Key Features

• 0.2656-inch diameter with a tight tolerance of +0.0000 to -0.0010 inches for consistent hole sizing
• 12-inch overall length and 9-inch flute length for long-reach drilling access
• 118-degree notched point for positive centering and reduced walking on entry
• Web-thinned, tapered web reduces drilling thrust in cast iron and steel
• Oxide finish lowers friction and provides basic corrosion resistance during storage and use
• Right-hand spiral flute design promotes efficient chip evacuation in deep holes

Compatibility

Designed as an OEM-style general-purpose extra length drill bit for use in standard straight-shank drill chucks compatible with a 0.2656-inch shank diameter. Primary workpiece materials are cast iron and steel.

Installation Notes

Install and secure the shank firmly in a compatible drill chuck before operation. Secure workpieces in a vise or fixture before drilling to prevent movement. Use appropriate cutting fluid or coolant when drilling ferrous metals to reduce heat buildup and extend bit life. Inspect the cutting edges for wear before each use and replace the bit if chipping or excessive dulling is present.