Cleveland C54256 Hand Tap 8-32 Unc Plug 2 Flute Hss

Product Description

The CLEVELAND C54256 is a straight-flute hand tap designed for cutting 8-32 UNC internal threads in ferrous and non-ferrous materials. Ground from high speed steel with a bright, uncoated finish, this tap operates in a right-hand direction and carries a plug chamfer with 3 to 5 leading threads for gradual thread engagement. The H1 thread limit holds tolerance for Class 2B fits, making it suitable for standard fastener applications. Overall length is 2.125 inches with a thread length of 0.38 inches and a shank diameter of 0.168 inches. Licensed machinists, maintenance mechanics, and tool room technicians are the primary installers.

The C54256 is built for both blind-hole and through-hole threading operations at the 8-32 pitch. It performs across a range of common workpiece materials including alloy steel, carbon steel, aluminum, and free-machining stainless steel. The 2-flute straight-flute geometry is well suited to shorter chipping materials where chip evacuation through the flutes is manageable. This tap is used in manual tapping operations, tapping handles, or low-speed machine tapping setups where controlled torque is maintained throughout the cut.

Key Features

• 8-32 UNC thread form, right-hand cut, Class 2B fit with H1 thread limit
• Plug chamfer (3 to 5 threads) for controlled thread lead-in in blind or through holes
• 2-flute straight-flute design suited for shorter-chipping materials
• High speed steel construction for durability across steel, aluminum, and free-machining stainless
• Bright uncoated finish — no coating buildup to affect thread tolerance
• Square drive end (0.25 inches length, 0.131 inches across flats) for standard tap wrenches and holders

Compatibility

Designed as an OEM-style hand tap for use in standard 8-32 UNC tapping applications across alloy steel, carbon steel, aluminum, and free-machining stainless steel workpieces in both blind-hole and through-hole configurations.

Installation Notes

Installation is performed by machinists or maintenance technicians using a tap wrench or compatible tapping handle sized for the square drive shank. Always drill the correct tap drill size for 8-32 UNC before tapping and ensure the tap enters the hole perpendicular to the workpiece surface. Apply cutting fluid appropriate for the workpiece material to reduce heat and extend tap life. Back off the tap periodically during hand tapping to break and clear chips, especially in blind holes.