Chicago-latrobe 50752 Extra Length Drill Bit 0.4844 in Hss

Product Description

The CHICAGO-LATROBE 50752 is a Series 120X extra length high speed steel drill bit designed for long reach drilling applications. Built from high speed steel with an oxide finish, it features a 118-degree notched point and a web-thinned, tapered web configuration that reduces thrust and improves chip clearing at the cutting edge. The spiral flute geometry and right-hand cutting direction are suited for consistent material removal in ferrous and cast iron workpieces. At 12 inches overall length with a 9-inch flute length, this bit provides the extended reach needed to access deep or recessed bore locations that standard length bits cannot reach.

This drill bit is intended for professional metalworking and machining environments where standard length tooling is insufficient. Its primary workpiece materials are cast iron and steel, making it well suited for HVAC equipment fabrication, mechanical contracting, and industrial maintenance tasks that require drilling through thick structural members, deep cavities, or stacked material. The straight-cylindrical shank accepts conventional three-jaw drill chucks without modification.

Key Features

• 118-degree notched point reduces walking and improves centering on flat surfaces
• Web-thinned tapered web lowers thrust requirements and clears chips more efficiently
• 9-inch flute length and 12-inch overall length enable long reach drilling in deep cavities
• High speed steel construction withstands heat generated during continuous cutting in steel and cast iron
• Oxide finish provides mild corrosion resistance and reduces friction during cutting
• Right-hand spiral flute with regular spiral type suits standard drill press and hand drill use

Compatibility

Designed as an OEM-style long reach drill bit compatible with any standard three-jaw drill chuck accepting a 0.4844-inch straight-cylindrical shank, intended for use in steel and cast iron workpieces across general purpose drilling applications.

Installation Notes

This bit is installed and operated by machinists, pipefitters, HVAC technicians, and mechanical contractors using drill presses, magnetic base drills, or heavy-duty hand drills. Secure the straight-cylindrical shank firmly in the chuck before operation and verify the chuck key is removed before starting the machine. Use appropriate cutting fluid when drilling steel to extend tool life and manage heat buildup. Follow applicable OSHA and shop-safety standards for rotating tool operation, including eye protection and secure workpiece fixturing.