Osg 1212802 Spiral Point Tap 8-32 Unc Hss Elektralube

Product Description

The OSG 1212802 is a spiral point tap designed for cutting internal threads in a wide range of ferrous and non-ferrous materials. It produces 8-32 UNC threads with a plug chamfer that makes it suitable for through-hole tapping applications. Built from high-speed steel with an elektraLUBE coating, this tap delivers reduced friction and improved chip flow during threading operations. It features a 2-flute design with a right-hand thread direction and an H3 thread limit, providing consistent 2B class of fit tolerances. Licensed machinists and tool-and-die professionals rely on this type of tap for production threading in machine shops and maintenance environments.

The OSG 1212802 is suited for through-hole tapping in both manual and CNC machine applications. Its material compatibility spans a broad spectrum, including aluminum, cast aluminum, cast iron, low-carbon steel, medium-carbon steel, high-carbon steel, and hardened steel. The plug chamfer style makes it most effective when threading through-holes where the tap can pass completely through the workpiece. It is commonly used in job shop production, MRO maintenance, and precision assembly work where a reliable 8-32 UNC thread form is required.

Key Features

• 8-32 UNC thread form with 2B class of fit for standard tolerance internal threads
• H3 thread limit for consistent fit in production threading applications
• Plug chamfer for efficient through-hole tapping
• elektraLUBE coating reduces friction and extends tool life across a range of materials
• High-speed steel construction provides durability and heat resistance during threading
• Right-hand, 2-flute design promotes chip evacuation ahead of the tap in through-hole cuts

Compatibility

Designed for tapping 8-32 UNC threads in aluminum, cast aluminum, cast iron, hardened steel, high-carbon steel, low-carbon steel, and medium-carbon steel workpieces. Part of the OSG Series 105 tap line.

Installation Notes

This tap is intended for installation by machinists using standard tapping equipment, including drill presses, CNC machining centers, or hand tapping tools. Always ensure the tap is properly aligned with the drilled pilot hole before engagement to prevent tap breakage. Secure the workpiece firmly before threading operations begin. Apply cutting fluid appropriate for the workpiece material when not using the built-in lubrication coating alone, and follow standard machine shop safety practices when operating rotating cutting tools.