Osg 1400144005 Thread Forming Tap 1/2-13 Unc Plug Tin

Product Description

The OSG 1400144005 is a plug-chamfer thread forming tap designed for producing 1/2-13 UNC internal threads in through-hole applications. Part of the HY-PRO NRT series, it is constructed from cobalt high-speed steel and finished with a titanium nitride (TiN) coating for extended tool life in demanding materials. The tap operates with a right-hand thread direction, carries a Class 2B fit designation, and is built to a Thread Limit of H8. With an overall length of 3.375 inches and a plug chamfer of 4 to 4.5 threads, it is suited for production environments where consistent thread quality and tool durability are required. Licensed machinists and tooling specialists are the primary users.

This tap is intended for through-hole threading operations across a broad range of metallic workpiece materials. It is well suited for use in CNC machining centers, drill presses, and tapping machines where controlled feeds and accurate alignment are maintained. The HY-PRO NRT series is formulated for cold-forming threads without chip generation, making it particularly effective in applications where chip evacuation is a concern. Right-hand cutting orientation is standard.

Key Features

• Cobalt high-speed steel construction for increased heat and wear resistance
• TiN coating reduces friction and extends tool life in abrasive materials
• Plug chamfer (4 to 4.5 threads) for easy starting in through-hole applications
• Thread forming design eliminates chips, reducing the risk of chip packing
• H8 thread limit ensures consistent Class 2B fit tolerances
• Right-hand, 13 threads per inch UNC configuration for standard fastener compatibility

Compatibility

Rated for use in alloy steel, aluminum, carbon steel, die steel, hardened steel, and stainless steel workpieces per manufacturer material application codes P and N.

Installation Notes

Thread forming taps are installed and operated by machinists using compatible tapping machines, CNC machining centers, or hand tap wrenches with proper torque control. Ensure the spindle speed and feed rate are appropriate for the workpiece material and tap diameter before operation. Use a cutting or tapping fluid rated for the specific workpiece material to maintain tap life and thread quality. Secure the workpiece fully before tapping to prevent movement during the forming operation.