Cleveland C54782 Tap Set 5/8-11 Unc Hss 3-piece

Product Description

The CLEVELAND C54782 is a 3-piece tap set machined from high speed steel and designed for cutting 5/8-11 UNC right-hand internal threads. The set includes bottoming, plug, and taper chamfer taps, giving machinists and tool-and-die professionals a complete progression for starting, advancing, and finishing threads in a single purchase. With 4 flutes and an H3 thread limit, the set handles both through-hole and blind-hole applications across a range of ferrous and non-ferrous workpiece materials. Overall length is 3.813 inches and thread length is 1.090 inches. The bright finish is uncoated, suitable for use with cutting fluid in conventional machining setups.

This tap set is used in machine shops, maintenance and repair operations, and manufacturing environments where 5/8-11 UNC threaded holes are required. The three-chamfer progression makes it well-suited for production tapping on manual mills, drill presses, and CNC machining centers. It is equally applicable to job-shop MRO work where a single set covers both new thread cutting and rethreading of damaged fastener holes in steel, cast iron, and aluminum components.

Key Features

• Three-piece set includes bottoming, plug, and taper taps for full thread progression
• 5/8-11 UNC thread form, right-hand direction
• 4-flute geometry for efficient chip evacuation in a variety of materials
• H3 thread limit for standard tolerance class fits
• High speed steel construction for durability under repeated use
• Bright finish compatible with standard cutting fluids and oils

Compatibility

Designed as a replacement or supplemental tap set for any application requiring 5/8-11 UNC right-hand internal threads. Fits standard tap holders and tapping heads accepting the shank dimensions of the Series 1004 design.

Installation Notes

Tap installation should be performed by a qualified machinist or maintenance technician familiar with speeds, feeds, and cutting fluid requirements for the workpiece material. Always secure the workpiece and use a properly aligned tap holder or tapping head to prevent tap breakage. Use an appropriate cutting fluid for the material being tapped and clear chips frequently, especially when tapping blind holes with the bottoming tap. Inspect tap flutes for wear or chipping before each use.