Osg 1413408 Spiral Flute Tap 10-32 Unf Ticn Hss

Product Description

The OSG 1413408 is a spiral flute plug tap designed for cutting 10-32 UNF right-hand internal threads in a range of ferrous and non-ferrous materials. Built from high-speed steel with a titanium carbonitride (TiCN) coating, it delivers improved wear resistance and lubricity compared to uncoated HSS taps. The 3-flute spiral design with a 50-degree helix angle evacuates chips up and out of the hole, making it well suited for blind-hole applications. Overall length is 2.375 inches, thread length is 0.511 inches, and the shank diameter is 0.194 inches. Thread limit is H3 and class of fit is 2B, producing standard-tolerance UNF threads without oversizing.

This tap is intended for use in machining, fabrication, maintenance, and repair operations where 10-32 UNF threads are required. It is rated for use in aluminum, cast aluminum, cast iron, low-carbon steel, medium-carbon steel, and high-carbon steel. Machinists, tool-and-die technicians, and maintenance professionals will find it appropriate for both production and repair tapping with standard tapping heads, drill presses, or CNC machining centers. The plug chamfer provides a gradual lead-in, making it a general-purpose choice for through-holes and blind holes with adequate chip clearance.

Key Features

• 50-degree right-hand spiral flute geometry evacuates chips from blind holes efficiently
• TiCN coating extends tool life and reduces friction in ferrous and non-ferrous materials
• Plug chamfer with H3 thread limit produces 2B class of fit UNF threads
• High-speed steel construction provides toughness across a broad range of workpiece materials
• Compact 2.375-inch overall length fits standard tap holders and machine spindles
• No coolant-through requirement simplifies setup on conventional machines

Compatibility

Designed for use with standard tap holders and tapping attachments that accept a 0.194-inch shank diameter. Suitable for 10-32 UNF tapping operations across the material applications listed in the specifications below.

Installation Notes

Tapping operations should be performed by a qualified machinist or maintenance technician following established shop safety procedures. Ensure the workpiece is securely fixtured and the tap is aligned perpendicular to the work surface before engaging. Use an appropriate tapping fluid or cutting oil for the workpiece material to maximize tool life, even though the TiCN coating provides inherent lubricity. Inspect the flutes and cutting edges for wear or damage before each use and replace the tap if chipping or deformation is observed.