Cleveland C57083 Spiral Point Tap 8-32 Unc 2 Flute Hss

Product Description

The CLEVELAND C57083 is a spiral point plug tap designed for cutting internal threads in through-hole applications. Built from high speed steel with a bright finish, this tap produces clean 8-32 UNC threads in a single pass by pushing chips forward ahead of the cutting zone rather than backing them out. The plug chamfer provides a gradual lead-in, making it suitable for through-hole threading in a range of ferrous and non-ferrous materials. With a 2-flute design and H2 thread limit, the C57083 holds consistent tolerance for 3B class of fit requirements.

This tap is well suited for machine shops, maintenance facilities, and field service applications where 8-32 UNC threaded holes are required in through-hole configurations. It performs in alloy steel, carbon steel, and aluminum workpieces. The right-hand thread direction and standard square drive shank make it compatible with tap handles, tapping heads, and CNC rigid tapping setups. It is a practical choice for electricians, HVAC technicians, and mechanical contractors who thread small fastener holes in panel enclosures, brackets, and equipment frames.

Key Features

• Spiral point geometry pushes chips forward for clean through-hole threading
• High speed steel construction provides durability across steel and aluminum applications
• Plug chamfer with gradual lead-in for controlled thread engagement
• H2 thread limit maintains tight tolerance for 3B class of fit
• Bright finish with no coolant-through requirement simplifies setup
• Right-hand cut, 2-flute design compatible with standard tapping equipment

Compatibility

Designed for through-hole threading operations in alloy steel, aluminum, and carbon steel. Fits standard tap handles and machine tapping chucks accepting a 0.168-inch shank diameter.

Installation Notes

Secure the workpiece and ensure the pilot hole is drilled to the correct tap drill size for 8-32 UNC threads before tapping. Use appropriate cutting fluid for the workpiece material to extend tool life and improve thread finish. Apply steady, consistent pressure and back the tap off periodically if hand tapping to clear chips. Always de-energize and lock out equipment before tapping holes in live assemblies.