Osg 1203802 Spiral Point Tap 10-32 Unf Hss Elektralube

Product Description

The OSG 1203802 is a spiral point plug tap designed for cutting 10-32 UNF internal threads in a wide range of ferrous and non-ferrous materials. Built from high-speed steel with an elektraLUBE coating, this two-flute tap uses its spiral point geometry to push chips forward ahead of the cutting zone, keeping the flutes clear and reducing the risk of chip packing in through-hole applications. The H1 thread limit ensures close dimensional control for precision thread fits. With a 7/8 inch thread length and right-hand cutting direction, it is a dependable choice for production or maintenance threading work.

This tap is suited for through-hole threading operations in materials including aluminum, cast aluminum, cast iron, low-carbon steel, medium-carbon steel, high-carbon steel, and hardened steel. The plug chamfer provides a gradual lead-in, making it appropriate for starting threads in open holes without the need for a separate starter or taper tap. It fits standard tap handles, T-handle wrenches, and machine tap holders, and is commonly used on drill presses, CNC machining centers, and hand-tapping setups in both production and field maintenance environments.

Key Features

• Spiral point geometry pushes chips forward for efficient through-hole tapping
• High-speed steel construction provides durability across a broad material range
• elektraLUBE coating reduces friction and extends tool life, especially in ferrous materials
• H1 thread limit for controlled, close-tolerance thread fits
• Plug chamfer allows smooth thread lead-in without a taper tap
• Right-hand cutting direction compatible with standard tap drivers and machine spindles

Compatibility

Designed for 10-32 UNF through-hole threading applications in aluminum, cast aluminum, cast iron, low-carbon steel, medium-carbon steel, high-carbon steel, and hardened steel. Fits standard 10-32 tap holders and collet-style machine holders.

Installation Notes

Tapping should be performed by a machinist or qualified technician using the correct tap drill size for 10-32 UNF threads. Always apply cutting fluid appropriate for the workpiece material, even with a coated tap, to maximize tool life. Ensure the workpiece is securely fixtured before starting. For machine tapping, use a floating tap holder to compensate for minor misalignment and avoid tap breakage.