Titan Usa TT91071 Spiral Point Tap 3/8-16 Unc Hss

Product Description

The TITAN USA TT91071 is a spiral point plug tap designed for through-hole threading in a wide range of general-purpose machining applications. Manufactured from high-speed steel (HSS) with a bright, uncoated finish, this 3/8-16 UNC tap features three flutes and a plug chamfer that guides the tap into the workpiece and distributes cutting load across several leading threads. With an overall length of 2.9375 inches and a thread length of 1.25 inches, the TT91071 is sized for standard bench, drill press, and CNC tapping operations. It carries an H3 thread limit and a 2B/3B class of fit, making it suitable for the tolerance range most common in production and repair work. Right-hand thread direction is standard.

This tap is built for general-purpose through-hole threading on mild steel, aluminum, brass, and similar machinable materials. The spiral point geometry pushes chips forward ahead of the tap rather than packing them into the flutes, making it particularly effective in through-hole applications where chip evacuation matters. Machinists, tool-and-die techs, and maintenance professionals reach for this profile when tapping holes in fixtures, structural components, and mechanical assemblies requiring a 3/8-16 UNC thread. It is sold individually, making it a practical replacement or single-operation choice in a shop or field environment.

Key Features

• 3/8-16 UNC thread size with right-hand thread direction for standard fastener compatibility
• Spiral point geometry pushes chips forward, optimizing performance in through-hole applications
• Plug chamfer (3-5 thread lead) provides a balance of guidance and cutting efficiency
• H3 thread limit with 2B/3B class of fit covers the most widely specified tolerance range
• High-speed steel construction offers strength and wear resistance across general-purpose materials
• Bright, uncoated finish suitable for use with standard tapping fluids and cutting oils

Compatibility

Designed as a general-purpose OEM-style replacement or new-installation tap for through-hole threading operations requiring a 3/8-16 UNC thread profile in standard machining and maintenance environments.

Installation Notes

This tap should be installed and operated by a qualified machinist or maintenance technician familiar with tapping procedures. Always secure the workpiece properly and use an appropriate tapping fluid or cutting oil to reduce tool wear and improve thread finish. Power down any machine tool and verify zero motion before changing or inspecting taps. Do not exceed the recommended feed rate for the material being threaded, and back the tap out periodically to clear chips when working in deeper holes.