Kennametal 1544515 Hand Tap 10-32 Unf Plug Tin Hss

Product Description

The KENNAMETAL 1544515 is a 10-32 UNF straight flute hand tap designed for cutting internal threads in ferrous and hard materials. Built from high-speed steel with a titanium nitride (TiN) coating, it delivers extended tool life and reduced friction during tapping operations. The plug chamfer (3-5 threads) makes it suited for through-hole applications where the tap can advance fully through the workpiece. With a Class 2B fit and H3 thread limit, it produces threads within standard tolerance for general mechanical assemblies. Overall length is 2.375 inches with a thread length of 0.875 inches and a shank diameter of 0.194 inches. This tap is sold individually and is part of the Kennametal Series 2305 and 2310 lineup.

This tap is intended for use in cast iron, stainless steel, and steel workpieces in both production and maintenance settings. The 10-32 UNF thread form is common in precision instrumentation, electronics hardware, and light mechanical assemblies. It is appropriate for hand tapping operations in machine shops, maintenance facilities, and field service environments where controlled thread cutting is required.

Key Features

• TiN coating reduces friction and extends tool life compared to uncoated HSS taps
• Plug chamfer (3-5 thread lead) suited for through-hole tapping applications
• H3 thread limit holds Class 2B fit tolerances for standard mechanical assemblies
• 4-flute straight flute geometry provides stability and chip control in short-chipping materials
• Right-hand thread direction, compatible with standard tap wrenches and tapping heads
• Rated for cast iron, stainless steel, and steel material applications

Compatibility

Designed for 10-32 UNF thread applications in cast iron, stainless steel, and steel. Part of the Kennametal Series 2305 and 2310 product families.

Installation Notes

Install using a properly sized tap wrench or tapping head; ensure the tap is started straight and perpendicular to the workpiece surface. Apply appropriate cutting fluid for the material being tapped, particularly when working with stainless steel. Back the tap off periodically to break chips and prevent tap binding. Follow shop safety procedures and applicable OSHA guidelines when operating cutting tools.