Chicago-latrobe 50586 Extra Length Drill Bit 17/32 in Hss

Product Description

The CHICAGO-LATROBE 50586 is a high speed steel extra length drill bit engineered for long-reach drilling applications where standard-length bits cannot reach. Built to Series 120X specifications, it features a 0.5312-inch diameter, a 12-inch overall length, and a 9-inch spiral flute for efficient chip evacuation. The oxide finish provides surface hardness and mild lubricity during cutting operations. A web-thinned, notched point reduces entry thrust and improves centering on initial engagement. This bit is sized for use by machinists, maintenance technicians, and fabricators who need extended reach into deep bores or stacked materials.

This drill bit is designed for long-reach drilling in cast iron and steel workpieces in manufacturing, fabrication, and industrial maintenance environments. The straight-cylindrical shank fits standard drill chucks without adapters. The 118-degree drill point angle is suited to general-purpose metalworking across a wide range of ferrous materials. Right-hand cutting direction is standard for conventional drill press and hand-drill operation.

Key Features

• 0.5312-inch (17/32 inch) diameter with a tight tolerance of +0.0000 to -0.0012 inches
• 12-inch overall length enables deep-reach and stacked-material drilling
• 9-inch spiral flute length promotes consistent chip clearance in deep holes
• Web-thinned, notched point reduces thrust and improves bit centering
• High speed steel construction with oxide finish for general-purpose ferrous metalworking
• Tapered web configuration maintains core strength along the full flute length

Compatibility

Designed as an OEM-style replacement or direct-use extra length drill bit for standard drill chucks accepting a 0.5312-inch straight-cylindrical shank, suitable for general-purpose long-reach drilling in cast iron and steel.

Installation Notes

Installation of this bit is performed by machinists and maintenance technicians using a compatible drill press, magnetic drill, or hand drill with a properly rated chuck. Secure the straight-cylindrical shank fully in the chuck and verify runout before drilling. Always use appropriate cutting fluid when drilling ferrous materials to extend bit life and control heat. Wear eye protection and follow applicable shop safety standards when operating drilling equipment.