Osg 1776408 Spiral Point Tap 10-32 Unf 3 Flute Ticn

Product Description

The OSG 1776408 is a spiral point plug tap designed for cutting 10-32 UNF threads in a range of ferrous materials. Built from Vanadium High Speed Steel (HSS-E) with a TiCN (Titanium Carbonitride) coating, it delivers enhanced wear resistance and improved tool life compared to standard uncoated taps. The plug chamfer eases thread entry and works well for through-hole tapping. With 3 flutes and a right-hand thread direction, the tap pushes chips forward ahead of the cut, reducing chip packing in through-hole applications. Thread limit is H4, indicating a tight tolerance class suited for precision threading work.

This tap is rated for use in hardened steel, low-carbon steel, medium-carbon steel, and stainless steel. It is appropriate for production and maintenance environments where 10-32 UNF threads are required in through-holes. Machinists, tool and die workers, and maintenance mechanics commonly use this tap in manual tapping, CNC, or drill press setups. The TiCN coating makes it a solid choice for abrasive or higher-hardness materials where standard HSS taps wear prematurely.

Key Features

• 10-32 UNF thread form with H4 thread limit for close-tolerance threading
• Vanadium High Speed Steel (HSS-E) construction for toughness in ferrous materials
• TiCN coating increases surface hardness and reduces friction for extended tool life
• 3-flute spiral point design pushes chips forward, ideal for through-hole tapping
• Plug chamfer for standard thread lead-in and general-purpose use
• Right-hand thread direction; no coolant-through feature

Compatibility

Rated for use in hardened steel, low-carbon steel, medium-carbon steel, and stainless steel. Designed for through-hole applications requiring 10-32 UNF right-hand threads to an H4 tolerance class.

Installation Notes

Always disengage power and secure the workpiece before tapping. Use an appropriate tapping fluid or cutting oil when threading steel or stainless steel to reduce heat buildup and extend tap life. Ensure the tap is driven square to the hole axis to avoid tap breakage or thread misalignment. Follow applicable shop safety standards and manufacturer recommendations for spindle speed when using in a machine setup.