Kennametal 1541608 Hand Tap 8-32 Unc Plug Rh Hss 4-flute

Product Description

The KENNAMETAL 1541608 is a straight-flute hand tap designed for cutting 8-32 UNC internal threads in a variety of workpiece materials. Built from high-speed steel (HSS) with a bright, uncoated finish, it delivers consistent thread quality in cast iron and non-ferrous metals. The plug chamfer provides a moderate lead-in, making it well suited for through-holes and most general-purpose tapping applications. With a Class 2B thread fit and H3 thread limit, this tap produces threads within standard tolerance for general mechanical assembly. Overall length is 2.13 inches, with a thread length of 0.75 inches and a shank diameter of 0.168 inches.

This tap is a practical choice for machine shops, maintenance technicians, and tooling professionals who need a reliable 8-32 hand tap for production or repair work. The 4-flute straight-flute design performs well in through-hole applications in cast iron and non-ferrous metals such as aluminum and brass. It is part of the Kennametal Series 5305 and 5303 tap family. Right-hand thread direction matches standard fastener configurations used across general manufacturing, HVAC equipment assemblies, and light structural components.

Key Features

• 8-32 UNC right-hand thread form, Class 2B fit for standard mechanical assembly
• H3 thread limit for consistent tolerance across production runs
• Plug chamfer for moderate lead-in, suitable for through-holes
• 4-flute straight-flute geometry optimized for cast iron and non-ferrous metals
• High-speed steel construction with bright uncoated finish
• No coolant-through required — suited for hand tapping and low-speed machine use

Compatibility

Designed for cutting 8-32 UNC threads in cast iron and non-ferrous metals. Part of Kennametal Series 5305 and 5303. Fits standard tap handles and tapping heads accepting straight-shank taps with a 0.168-inch shank diameter.

Installation Notes

Hand taps should be installed in a properly aligned tap handle or tapping fixture to prevent cross-threading and tap breakage. Ensure the workpiece is securely fixtured and the tap is started perpendicular to the surface. Apply appropriate cutting fluid for the workpiece material to extend tap life and improve thread finish. Reverse the tap periodically to break chips when working in deeper holes.