Cleveland C54587 Tap Set 3/8-16 Unc Hss 3 Piece

Product Description

The CLEVELAND C54587 is a three-piece tap set designed for cutting 3/8-16 UNC internal threads in metal workpieces. The set includes bottoming, plug, and taper chamfer taps, allowing machinists and trade professionals to start, continue, and finish threads in a single setup without swapping between separate tooling. All three taps are ground from high speed steel (HSS) with a bright finish and feature four flutes for efficient chip evacuation. The 2.938-inch overall length fits standard tap handles and machine spindles. The H3 thread limit holds close tolerances suitable for most general-purpose UNC threaded fastener applications.

This tap set is used in machine shops, maintenance and repair operations, and fabrication environments where 3/8-16 UNC threads must be cut in ferrous and non-ferrous metals. The three-chamfer configuration makes it well suited for both through-hole and blind-hole applications. Plumbers, pipefitters, millwrights, and general maintenance mechanics frequently use UNC tap sets when fabricating or repairing threaded connections on equipment, brackets, and mechanical assemblies. The right-hand thread direction is standard for the vast majority of fastener applications.

Key Features

• Three-piece set includes bottoming, plug, and taper taps for complete thread-cutting in one kit
• High speed steel construction provides durability across ferrous and non-ferrous materials
• Four-flute geometry promotes chip clearance and reduces loading during cutting
• H3 thread limit ensures consistent tolerance control for general-purpose UNC fastener fitment
• Bright finish with 2.938-inch overall length compatible with standard tap handles and machine setups
• 3/4-inch thread length accommodates typical fastener engagement depths in most workpieces

Compatibility

Designed as a standard replacement or general-purpose tap set for 3/8-16 UNC threading operations. Fits standard tap handles and tapping heads sized for 3/8-inch taps.

Installation Notes

Use with an appropriate tap handle, T-handle wrench, or tapping head rated for the tap shank diameter. Always secure the workpiece before tapping and apply cutting fluid to extend tool life and improve thread finish. For blind holes, use the taper tap first to start the thread, follow with the plug tap, and finish with the bottoming tap to cut threads to the full depth of the hole. Follow applicable shop safety practices and machine guarding requirements when power tapping.