Kennametal 1540467 Hand Tap 4-48 Unf Plug Rh Hss

Product Description

The KENNAMETAL 1540467 is a straight-flute hand tap designed for cutting 4-48 UNF internal threads in a right-hand direction. Manufactured from high-speed steel with a bright, uncoated finish, this tap operates at a Class 2B fit with an H2 thread limit, making it suitable for standard tolerance threading applications. The plug chamfer provides a gradual thread lead-in, distributing cutting forces across several teeth for controlled hand tapping. Overall length is 1.88 inches with a thread length of 0.563 inches and a shank diameter of 0.141 inches. This is a Series 5305 and 5303 tap sold as a single unit.

This tap is suited for threading operations in cast iron and non-ferrous metals. The 4-48 UNF thread form is a fine-pitch unified national thread commonly used in small fastener applications across light mechanical assemblies, instrumentation, and precision components. The plug chamfer style is the most versatile general-purpose chamfer, appropriate for through holes or deeper blind holes where a starting taper is not required.

Key Features

• 4-48 UNF thread form, right-hand cut, Class 2B fit with H2 thread limit
• Plug chamfer for general-purpose through-hole and blind-hole threading
• High-speed steel construction provides wear resistance and durability
• Bright, uncoated finish suitable for use with cutting fluids
• 3-flute straight-flute geometry for chip control in short-chipping materials
• Rated for cast iron and non-ferrous metal workpieces

Compatibility

Designed for use in cast iron and non-ferrous metal materials. Part of the Kennametal Series 5305 and 5303 hand tap line. Verify thread form, class of fit, and chamfer style against application requirements before installation.

Installation Notes

Hand taps of this size should be installed using a properly sized tap wrench to maintain alignment and avoid breakage. Secure the workpiece and apply appropriate cutting fluid for the material being tapped. Back the tap off periodically to break chips and prevent binding. Use of a tap guide or drill press alignment fixture is recommended to keep the tap square to the workpiece on blind-hole operations.