Cleveland C54834 Hand Tap M18x2.50 Plug Rh Hss 4-flute

Product Description

The CLEVELAND C54834 is a straight-flute hand tap designed for cutting internal M18x2.50 metric coarse threads in a variety of metals. Built from bright, uncoated high speed steel, this plug-chamfer tap is suited for both through-hole and blind-hole threading operations. The plug chamfer provides a gradual thread lead-in, reducing the torque needed to start the cut. With a 4-flute design and a D7 thread limit, it delivers consistent thread form and fits standard 6H class-of-fit tolerances. The overall length is 4.031 inches, and the thread length measures 1.81 inches, making it a practical choice for general-purpose production and maintenance threading work performed by machinists and toolroom technicians.

This tap is intended for use in blind-hole and through-hole threading applications across a range of workpiece materials, including alloy steel, aluminum, carbon steel, and free-machining stainless steel. It is well suited to manual tapping with a tap wrench or use in lightly powered tapping heads where hand-tap-style tooling is appropriate. The M18x2.50 thread specification is a standard metric coarse pitch commonly encountered in mechanical assemblies, structural fastening, and heavy-equipment maintenance contexts.

Key Features

• M18x2.50 metric coarse thread form, 6H class of fit, D7 thread limit
• Plug chamfer for gradual thread engagement in both blind and through holes
• 4-flute straight-flute geometry for chip control in a variety of metals
• High speed steel construction — bright, uncoated finish, no coolant-through requirement
• Overall length 4.031 inches, thread length 1.81 inches, shank diameter 0.542 inches
• Compatible with alloy steel, aluminum, carbon steel, and free-machining stainless steel workpieces

Compatibility

Designed as a standard M18x2.50 metric coarse plug tap suitable for blind-hole and through-hole threading in alloy steel, aluminum, carbon steel, and free-machining stainless steel. Fits standard tap wrenches and holders accepting a 0.542-inch shank with a 0.406-inch square drive.

Installation Notes

Hand taps of this type are installed and operated by machinists using a tap wrench or tapping fixture. The workpiece should be secured and properly drilled to the correct tap drill diameter for M18x2.50 before tapping begins. Apply appropriate cutting fluid for the workpiece material to reduce friction and extend tool life. Reverse the tap periodically during cutting to break chips and prevent tap breakage, particularly in blind holes.