Cleveland C54582 Hand Tap 3/8-16 Unc Taper Rh Hss

Product Description

The CLEVELAND C54582 is a 3/8-16 UNC 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, this 4-flute taper chamfer tap is engineered for consistent thread quality in production and maintenance applications. The right-hand thread direction and Class 3B fit with H3 thread limit make it suited for close-tolerance work where precision threading is required. Overall length is 2.938 inches with a thread length of 0.75 inches. Licensed machinists and tool-and-die technicians are the primary users of this tap in manual and machine-assisted hand-tapping operations.

This tap fits standard hand-tapping setups and is rated for use in alloy steel, aluminum, carbon steel, and free-machining stainless steel. The taper chamfer distributes cutting load across the lead threads, making it well suited for starting threads cleanly in both through-hole and blind-hole configurations. It is part of CLEVELAND Series 1001, a standard production tap line used across general metalworking, fabrication, and maintenance repair operations in industrial environments.

Key Features

• 3/8-16 UNC thread size with right-hand direction and Class 3B fit
• H3 thread limit for controlled close-tolerance threading
• Taper chamfer for easy thread entry and load distribution across lead threads
• 4-flute straight flute geometry compatible with blind-hole and through-hole applications
• High speed steel construction with bright uncoated finish
• Rated for alloy steel, aluminum, carbon steel, and free-machining stainless steel

Compatibility

Designed as a standard OEM-style replacement or new-installation hand tap for 3/8-16 UNC threaded applications in general metalworking, fabrication, and MRO environments. Compatible material applications include alloy steel, aluminum, carbon steel, and free-machining stainless steel as specified by the manufacturer.

Installation Notes

Installation is performed by machinists or maintenance technicians using a standard tap wrench or tapping fixture. Always secure the workpiece and ensure the tap is aligned perpendicular to the hole before threading begins. Back the tap off periodically to break chips and prevent binding, especially in blind-hole applications. Use appropriate cutting fluid for the workpiece material to extend tap life and improve thread finish.