Titan Usa TT91075 Spiral Point Plug Tap 3/8-24 Unf Hss

Product Description

The TITAN USA TT91075 is a spiral point plug tap designed for through-hole threading in a wide range of materials. Built from high-speed steel (HSS) with a bright, uncoated finish, this tap cuts a 3/8-24 UNF right-hand thread and is rated for 2B/3B class of fit with an H3 thread limit. The plug chamfer geometry — typically 3 to 5 threads of lead — makes it well-suited for general-purpose through-hole applications where the tap can push chips forward ahead of the cut. With a 3-flute spiral point design, it runs efficiently in power-tapping setups and hand-tapping operations alike.

This tap is used in general-purpose threading of through-holes in ferrous and non-ferrous metals, plastics, and similar machinable materials. It is appropriate for use in production machine shops, maintenance and repair operations, and fabrication environments. The 3/8-24 UNF thread form is common in automotive, aerospace, and precision mechanical assemblies where a fine-pitch thread is required for tight load-bearing connections. Overall length of 2.9375 inches and a thread length of 1.25 inches provide adequate reach for most standard workpiece thicknesses.

Key Features

• 3/8-24 UNF thread form with right-hand cutting direction
• Spiral point geometry pushes chips forward — optimized for through-hole applications
• 3 flutes with plug chamfer for balanced material removal and lead guidance
• H3 thread limit with 2B/3B class of fit for standard tolerance threading
• High-speed steel construction for durability across general-purpose materials
• Bright/uncoated finish suitable for use with cutting fluids on a broad range of workpiece materials

Compatibility

Designed as a general-purpose spiral point plug tap for through-hole threading in standard 3/8-24 UNF applications across ferrous metals, non-ferrous metals, and machinable plastics.

Installation Notes

This tap is installed by machinists and tooling technicians using a tap wrench, tapping head, or CNC machine spindle with appropriate tapping chuck. Always ensure the workpiece is securely fixtured and the pilot hole diameter is correct for 3/8-24 UNF before beginning the threading operation. Apply a suitable cutting fluid to extend tool life and improve thread finish. Do not reverse the tap under power without confirming the machine setup supports spiral point tooling reversal.