Cleveland C54280 Tap Set 8-32 Unc 4 Flute Hss

Product Description

The CLEVELAND C54280 is a 3-piece tap set designed for cutting 8-32 UNC internal threads in metal workpieces. The set includes bottoming, plug, and taper chamfer taps, giving machinists and maintenance technicians the full progression needed to thread a hole from start to finish or to reach the bottom of a blind hole. All three taps are ground from high speed steel (HSS) with a bright finish and feature 4 flutes for efficient chip evacuation. Overall length is 2.125 inches with a thread length of 0.38 inches. Thread limit is H3, suitable for standard tolerance threading applications.

This tap set is used in machine shops, maintenance and repair operations (MRO), and production environments wherever 8-32 UNC threads are required. Typical applications include threading holes in steel, aluminum, brass, and similar metals for fastener installation in light mechanical assemblies, electrical enclosures, panel work, and equipment fabrication. Right-hand thread direction is standard for the vast majority of fastener applications.

Key Features

• 3-piece set includes bottoming, plug, and taper chamfer taps for complete threading progression
• 8-32 UNC thread form, right-hand direction
• High speed steel construction for durability across ferrous and non-ferrous materials
• 4-flute design promotes efficient chip removal during threading
• H3 thread limit for standard tolerance fit
• Bright finish — no coating to affect dimensional accuracy

Compatibility

Designed for use in any standard tap wrench, T-handle tap wrench, or machine tapping setup sized for 8-32 UNC taps. Suitable for hand tapping and light-duty machine tapping operations.

Installation Notes

Secure the workpiece before tapping and ensure the pilot hole is drilled to the correct tap drill diameter for 8-32 UNC threads per standard drill charts. Apply cutting fluid appropriate to the workpiece material to extend tap life and improve thread quality. Use a tap wrench or machine holder that firmly grips the tap shank to avoid slippage or breakage. Back the tap off periodically to break chips, especially in blind-hole applications using the bottoming tap.