Cleveland C54857 Hand Tap M20x1.50 Plug Rh Hss

Product Description

The CLEVELAND C54857 is a straight-flute hand tap designed for cutting M20x1.50 metric fine internal threads in a shop or field environment. It is manufactured from bright, uncoated high speed steel and features a 4-flute, plug-chamfer geometry that balances chip clearance with thread lead-in performance. The overall length is 4.469 inches, with a 2.0-inch thread length and a D6 thread limit for close-tolerance 6H class-of-fit work. Machinists and tool-and-die professionals use this tap for both blind-hole and through-hole threading applications where right-hand metric fine threads are required.

This tap is suited for manual tapping operations in production and maintenance environments. It performs in alloy steel, carbon steel, aluminum, and free-machining stainless steel workpieces. The plug chamfer, typically 3 to 5 threads, makes it appropriate as a starting tap in through holes or as a second-stage tap in blind holes after a taper tap has been used. It is part of the Cleveland Series 1002 line of hand taps and is sold individually.

Key Features

• M20x1.50 metric fine thread form, right-hand cut, 6H class of fit
• D6 thread limit for controlled oversize tolerance in tapped holes
• High speed steel construction for durability across steel and aluminum workpieces
• Bright, uncoated finish — compatible with cutting oil and standard tapping fluids
• 4-flute straight-flute design suits both blind-hole and through-hole threading
• Plug chamfer geometry provides stable thread lead-in without excessive axial force

Compatibility

Designed for use in alloy steel, carbon steel, aluminum, and free-machining stainless steel workpieces requiring M20x1.50 metric fine right-hand internal threads. Suitable for blind-hole and through-hole threading applications.

Installation Notes

Use in a proper tap wrench or tapping fixture; do not apply side pressure to the tap body. Power down and secure any machine tool before changing or setting taps. Apply a suitable cutting fluid throughout the tapping cycle to reduce heat and extend tool life. Follow applicable shop safety procedures for cutting tool handling and workpiece clamping.