Osg 1207802 Spiral Point Tap 8-32 Unc Hss Elektralube

Product Description

The OSG 1207802 is a spiral point tap designed for cutting internal threads in through-hole applications across a wide range of materials. Built from high-speed steel with an elektraLUBE coating, this tap produces 8-32 UNC threads with a plug chamfer lead and a 3B class of fit. The 2-flute spiral point geometry pushes chips forward ahead of the cutting zone, keeping the flutes clear during machine tapping operations. With an H2 thread limit and 0.75 inches of thread length, it delivers consistent dimensional accuracy for production and maintenance threading work. Licensed machinists, tool-and-die techs, and maintenance professionals are the typical users.

This tap is suited for through-hole threading in a broad material range including low-carbon steel, medium-carbon steel, high-carbon steel, hardened steel, cast iron, aluminum, and cast aluminum. The plug chamfer makes it appropriate for applications where the tap can pass fully through the workpiece, allowing chips to evacuate cleanly without packing. It performs well in both CNC tapping centers and hand-tapping setups where through-holes are accessible.

Key Features

• 8-32 UNC thread form with 3B class of fit for standard tolerance internal threads
• Plug chamfer lead for efficient through-hole threading and clean chip ejection
• Spiral point geometry pushes chips forward, reducing clogging in through-hole applications
• High-speed steel construction provides toughness across a wide range of workpiece materials
• elektraLUBE coating reduces friction and heat buildup during cutting, extending tool life
• H2 thread limit ensures dimensional consistency for production threading operations

Compatibility

Designed for threading 8-32 UNC through-holes in aluminum, cast aluminum, cast iron, hardened steel, high-carbon steel, low-carbon steel, and medium-carbon steel workpieces. Right-hand thread cutting only. No coolant-through capability.

Installation Notes

This tap is installed by machinists or maintenance technicians using a standard tap wrench, tapping head, or CNC rigid tapping spindle. Confirm the pilot hole is drilled to the correct tap drill diameter for 8-32 UNC before threading. Use appropriate cutting fluid for the workpiece material to reduce heat and extend tap life. Do not reverse-feed a spiral point tap in blind holes, as the chip-forward geometry is engineered specifically for through-hole applications.