Chicago-latrobe 50736 Extra Length Drill Bit 0.2656 in Hss

Product Description

The CHICAGO-LATROBE 50736 is a Series 120X extra length drill bit designed for long-reach drilling applications in metal fabrication and machining environments. It measures 0.2656 inches in diameter with a 10-inch overall length, giving it the extended reach needed to drill through deep workpieces or in confined setups where standard-length bits fall short. The bit is made from high speed steel with an oxide finish, a 118-degree notched point, and a web-thinned, tapered web configuration that reduces thrust and improves chip evacuation. Two right-hand spiral flutes handle swarf removal during the cut. This bit is installed and used by machinists, tool-and-die workers, and maintenance trades working with steel and cast iron.

This bit is built for general-purpose long-reach drilling in cast iron and steel. The extended 10-inch overall length with a 7.5-inch flute length suits deep-hole operations, stack drilling, or any application where a jobber-length bit cannot reach the cut zone. The straight-cylindrical shank at 0.2656 inches diameter fits standard drill chucks and collet holders in both hand-held and machine setups. The regular spiral geometry and right-hand cutting direction match conventional CNC drill, drill press, and hand drill applications.

Key Features

• 10-inch overall length and 7.5-inch flute length for extended reach drilling
• High speed steel construction with oxide finish for wear resistance in ferrous materials
• 118-degree notched point with web thinning reduces entry thrust and improves centering
• Straight-cylindrical shank at 0.2656 inches diameter fits standard chucks and collets
• Two right-hand regular spiral flutes promote efficient chip evacuation
• Diameter tolerance of +0.0000 to -0.0010 inches for consistent, on-size holes

Compatibility

Designed as a general-purpose extra length drill bit for use in cast iron and steel. Fits any standard drill chuck or collet holder accepting a 0.2656-inch straight-cylindrical shank. Part of the CHICAGO-LATROBE Series 120X product line.

Installation Notes

Secure the shank fully in the chuck or collet before use and verify runout before beginning a cut. Always reduce spindle speed and feed rate relative to jobber-length bits of the same diameter, as the increased length raises deflection risk. Wear appropriate eye protection and follow applicable shop safety standards when operating drilling equipment. This product is subject to California Proposition 65 requirements.