Osg 1400110100 Thread Forming Tap 6-32 Unc Bottoming Cobalt

Product Description

The OSG 1400110100 is a cobalt thread forming tap designed for blind hole threading in demanding production and maintenance applications. Part of the HY-PRO NRT series, this bottoming chamfer tap displaces material rather than cutting chips, producing strong formed threads with minimal debris. The overall length is 2 inches, and the thread limit is H4, providing consistent thread tolerance control. With a bright finish and cobalt construction, it delivers solid performance in tough materials where standard high-speed steel taps fall short. Licensed machinists and tool-and-die professionals are the typical users of this tap.

This tap is suited for threading blind holes in a wide range of metals, including alloy steel, aluminum, carbon steel, die steel, hardened steel, and stainless steel. The bottoming chamfer with 1 to 1.5 chamfered threads allows threading close to the bottom of a blind hole, making it a practical choice for precision fixtures, structural fastener applications, and close-tolerance assemblies in both job shop and production environments.

Key Features

• Thread forming design displaces material instead of cutting, eliminating chips in blind holes
• Cobalt construction provides increased hardness and heat resistance over standard HSS
• Bottoming chamfer (1 to 1.5 chamfered threads) allows threading to the base of blind holes
• H4 thread limit ensures consistent tolerance control for 6-32 UNC threads
• Bright finish for general-purpose use across multiple compatible materials
• Right-hand thread direction, 32 threads per inch, conforming to UNC standards

Compatibility

Designed for use in alloy steel, aluminum, carbon steel, die steel, hardened steel, and stainless steel workpieces requiring 6-32 UNC blind hole threads. Material application codes P and N apply.

Installation Notes

This tap is installed by machinists or tool-and-die technicians using a standard tap handle, tapping head, or CNC tapping attachment. Ensure the workpiece is securely fixtured and the pilot hole diameter is correctly sized for thread forming before starting. Because this is a forming tap, no chip clearance is required, but appropriate tapping fluid or cutting oil should be applied to extend tool life and maintain thread quality. Always verify spindle direction and feed rate match the tap specification before engaging the workpiece.