Cleveland C54330 Hand Tap 10-24 Unc Plug Hss Bright

Product Description

The CLEVELAND C54330 is a 10-24 UNC plug chamfer hand tap designed for cutting internal threads in both blind holes and through-holes. Manufactured from high speed steel with a bright uncoated finish, this 4-flute straight flute tap delivers consistent thread formation in a wide range of common workpiece materials. It carries a right-hand thread direction and a Class of Fit of 2B and 3B with an H3 thread limit, making it suitable for standard tolerance threading applications in production and maintenance environments. Machinists, tool and die workers, and maintenance technicians are the primary users of this tap.

The C54330 is suited for threading operations in alloy steel, carbon steel, aluminum, and free-machining stainless steel. Its plug chamfer — typically 3 to 5 threads of lead — makes it the standard choice for starting threads in a pre-drilled hole where a bottoming tap is not required. It works effectively in both hand tapping operations and low-speed machine tapping setups where straight flute geometry is appropriate for the material.

Key Features

• 10-24 UNC thread form, right-hand direction
• Plug chamfer for general-purpose blind hole and through-hole threading
• 4-flute straight flute design for balanced cutting and chip handling
• High speed steel construction for durability across multiple materials
• Bright uncoated finish — no coating interference with close-tolerance fits
• H3 thread limit with Class of Fit 2B and 3B for standard tolerance work

Compatibility

Designed for use in alloy steel, aluminum, carbon steel, and free-machining stainless steel workpieces requiring 10-24 UNC internal threads in blind hole or through-hole configurations.

Installation Notes

This tap is installed by a machinist or maintenance technician using a standard tap wrench or tapping head. Always use a properly sized 10-24 tap drill and apply cutting fluid appropriate to the workpiece material before beginning the threading operation. Back the tap off periodically to break chips and prevent binding, especially in blind holes. Secure the workpiece firmly before tapping to prevent movement that can cause tap breakage.