Cleveland C54847 Hand Tap 3/4-16 Unf 4-flute Hss

Product Description

The CLEVELAND C54847 is a 3/4-16 UNF straight-flute hand tap designed for cutting internal threads in metal workpieces. Built from high speed steel with a bright uncoated finish, this tap features a plug chamfer, four flutes, and a right-hand thread direction. It measures 4.25 inches overall length with a 1.22-inch threaded section and a 0.59-inch shank diameter. The H3 thread limit and Class 3B fit make it well-suited for applications requiring close tolerances. Machinists and tool-and-die technicians use this tap for both blind hole and through-hole threading operations in production and maintenance environments.

The C54847 is appropriate for use in general machining, job shop, and maintenance repair operations. Its plug chamfer — typically 3 to 5 threads of taper — makes it a versatile choice as a starting tap or the only tap used in through-hole applications. It is rated for use in alloy steel, aluminum, carbon steel, and free-machining stainless steel. The straight-flute design is standard for hand tapping and works effectively in a range of material hardnesses within the listed material categories.

Key Features

• 3/4-16 UNF thread form with right-hand direction and Class 3B fit
• Plug chamfer for use in both blind hole and through-hole threading
• Four straight flutes for chip clearance during hand tapping
• H3 thread limit for close-tolerance threaded hole production
• High speed steel construction without coating for general-purpose durability
• Compatible with alloy steel, aluminum, carbon steel, and free-machining stainless steel

Compatibility

Designed for blind hole and through-hole threading in alloy steel, aluminum, carbon steel, and free-machining stainless steel workpieces requiring a 3/4-16 UNF internal thread.

Installation Notes

This tap is intended for use by machinists and skilled tradespeople performing hand or machine tapping operations. Before use, ensure the workpiece is securely fixtured and the correct tap drill size for 3/4-16 UNF has been used to prepare the hole. Apply appropriate cutting fluid for the workpiece material to reduce friction and extend tap life. Do not force the tap — back off periodically to break chips, especially in blind hole applications.