Cleveland C54452 Tap Set 1/4-20 Unc Hss 3 Piece

Product Description

The CLEVELAND C54452 is a three-piece tap set designed for cutting 1/4-20 UNC internal threads in metal and other machinable materials. The set includes bottoming, plug, and taper chamfer taps, allowing the user to progress through the full threading sequence in a single purchase. All three taps are ground from high speed steel (HSS) with a bright finish and feature a four-flute design that clears chips efficiently during hand or machine tapping. Overall length is 2.5 inches, and the right-hand thread direction suits standard fastener applications. Thread limit is H2, providing a controlled fit range appropriate for general-purpose UNC threaded assemblies.

This tap set is suited for maintenance, repair, and fabrication work where 1/4-20 UNC threads need to be cut or restored in through-holes or blind holes. The inclusion of all three chamfer styles makes it practical for starting threads in new stock with the taper tap, advancing with the plug tap, and finishing threads to the bottom of a blind hole with the bottoming tap. It is a common choice for machinists, millwrights, and general metal fabricators working in job-shop or field-service environments.

Key Features

• Three-piece set includes bottoming, plug, and taper taps for a complete threading sequence
• 1/4-20 UNC thread form, right-hand direction
• High speed steel construction for durability across a range of ferrous and non-ferrous materials
• Four-flute design promotes chip clearance and thread-form accuracy
• H2 thread limit for controlled tolerance fit in standard UNC applications
• Bright finish, no coating — suitable for use with cutting fluid of the operator's choice
• 2.5-inch overall length fits standard tap handles and machine tool collets

Compatibility

Designed as an OEM-style replacement or standard tooling option for any application requiring 1/4-20 UNC right-hand taps in the CLEVELAND Series 1004 product line.

Installation Notes

Tapping operations should be performed by a qualified machinist or trained technician following standard shop safety practices. Always secure the workpiece firmly before beginning and use an appropriate cutting fluid to extend tap life and improve thread quality. Begin with the taper tap to establish the thread lead, progress to the plug tap, and use the bottoming tap only when threading to the bottom of a blind hole. Do not force a tap past its cutting resistance, as HSS taps are susceptible to breakage under excessive torque.