Osg 1294200 Extension Tap 6-32 Unc Hss Spiral Point

Product Description

The OSG 1294200 is a spiral point plug extension tap designed for right-hand threading in a wide range of metalworking applications. Built from high-speed steel with a bright, uncoated finish, this tap features a 6-32 UNC thread form, H3 thread limit, and a 2B class of fit. The two-flute spiral point geometry pushes chips forward ahead of the tap, making it well suited for through-hole threading operations. At 6 inches overall length, the extended reach allows threading in recessed or deep-access locations where a standard-length tap cannot reach. A reduced shank and 0.141-inch shank diameter allow use in standard tap holders.

This extension tap is intended for threading operations in aluminum, carbon steel, cast iron, and hardened steel workpieces. The plug chamfer makes it appropriate for through-hole applications where the tap can advance freely through the material. The 11/16-inch thread length and 0.685-inch neck length suit typical fastener engagement depths for 6-32 hardware in production and maintenance machining environments. Machinists, tool and die technicians, and maintenance mechanics are the primary users of this tool.

Key Features

• 6-32 UNC thread form with H3 thread limit and 2B class of fit for standard tolerance threading
• Spiral point geometry pushes chips forward, reducing chip pack in through-hole applications
• 6-inch overall length provides extended reach into deep or recessed holes
• High-speed steel construction handles aluminum, carbon steel, cast iron, and hardened steel
• Reduced shank design with 0.141-inch shank diameter fits standard tap chucks and holders
• Bright, uncoated finish suitable for use with cutting fluid on a broad range of workpiece materials

Compatibility

Designed for use in standard tap holders and chucks accepting a 0.141-inch reduced shank. Suitable for through-hole threading of 6-32 UNC fastener applications in aluminum, carbon steel, cast iron, and hardened steel workpieces.

Installation Notes

Use appropriate cutting fluid or tapping compound for the workpiece material to extend tool life and improve thread quality. Secure the workpiece firmly and ensure the tap is aligned perpendicular to the hole before beginning the threading cycle. Reverse the tap periodically when tapping by hand to break chips and prevent binding. Follow shop safety procedures and wear appropriate eye protection when operating tapping equipment.