Cleveland C54467 Hand Tap 1/4-28 Unf Plug 4-flute Hss

Product Description

The CLEVELAND C54467 is a 1/4-28 UNF straight-flute hand tap designed for cutting internal threads in both blind holes and through-holes. Built from high speed steel (HSS) with a bright, uncoated finish, it delivers consistent thread quality across a range of common workpiece materials. The plug chamfer (3-5 thread lead) makes it suitable for most general-purpose tapping operations where a starting tap is not required. At 2.5 inches overall length with a 0.63-inch threaded section, this tap fits standard tap handles and is sized for precision work in 1/4-28 applications. The 4-flute straight-flute design suits hand tapping in stable setups.

This tap is used in machine shops, maintenance and repair operations, and field fabrication where 1/4-28 UNF internal threads are required. The straight-flute geometry works in both blind-hole and through-hole configurations. Material applications include alloy steel, aluminum, carbon steel, and free-machining stainless steel. It is a Series 1002 tap, intended for hand tapping operations with a standard tap wrench or T-handle.

Key Features

• 1/4-28 UNF thread form, right-hand cut, Class 2B fit
• Plug chamfer for general-purpose blind-hole and through-hole tapping
• 4-flute straight-flute design for stable hand tapping
• High speed steel construction with bright uncoated finish
• H2 thread limit for controlled fit tolerance
• Compatible with alloy steel, aluminum, carbon steel, and free-machining stainless steel

Compatibility

Designed as a standard hand tap for use in any application requiring 1/4-28 UNF internal threads. Fits standard tap handles sized for 1/4-inch taps. Suitable for alloy steel, aluminum, carbon steel, and free-machining stainless steel workpieces.

Installation Notes

Machinists and maintenance technicians should secure the workpiece firmly before tapping. Use appropriate cutting fluid for the workpiece material to extend tap life and improve thread quality. Back the tap off periodically during hand tapping to break chips and reduce the risk of tap breakage. Ensure the tap is started square to the hole to maintain thread alignment and Class 2B fit tolerance.