Cleveland C54154 Hand Tap 4-48 Unf Plug Rh 2B H2 Hss

Product Description

The CLEVELAND C54154 is a 4-48 UNF straight-flute hand tap designed for cutting internal threads in both blind holes and through holes. Built from high speed steel with a bright uncoated finish, it delivers consistent thread form across a wide range of workpiece materials. The plug chamfer provides a standard lead-in, making it the go-to choice for general threading work where a starting tap or bottoming tap is not required. At 1.875 inches overall length with a 0.31-inch thread length, this tap is sized for light-duty threading applications on small-diameter fastener holes. A right-hand, 3-flute straight-flute configuration produces clean 2B-class threads to the H2 thread limit.

This tap is suited for job shop, maintenance, and production threading operations where 4-48 UNF internal threads are required. The straight-flute design handles both blind hole and through-hole applications. It is commonly used by machinists, tool and die workers, and maintenance mechanics working with alloy steel, carbon steel, aluminum, and free-machining stainless steel workpieces. Series 1002 designates it as part of Cleveland's standard hand tap line.

Key Features

• High speed steel construction for durability across a range of workpiece materials
• Bright uncoated finish suitable for use with standard cutting fluids
• Plug chamfer for standard lead-in in blind hole and through-hole threading
• 3-flute straight-flute geometry produces clean chip flow on short-chipping materials
• Right-hand cut, 2B class of fit, H2 thread limit for standard UNF tolerance requirements
• Compact 1.875-inch OAL sized for confined-space threading on small fastener holes

Compatibility

Compatible with alloy steel, aluminum, carbon steel, and free-machining stainless steel workpieces requiring 4-48 UNF internal threads in blind hole or through-hole configurations.

Installation Notes

This tap is installed using a standard tap wrench or tapping fixture; secure the workpiece firmly before threading. Apply an appropriate cutting fluid for the workpiece material to extend tap life and improve thread finish. Avoid excessive downward pressure — let the tap lead itself into the hole using the plug chamfer. Follow standard machining and shop safety practices, including eye protection and proper workholding.