Cleveland C57073 Spiral Point Tap 6-32 Unc 2 Flute

Product Description

The CLEVELAND C57073 is a spiral point tap designed for right-hand threading in blind hole applications. It cuts a 6-32 UNC thread profile using a 2-flute, bottoming chamfer geometry that allows threading close to the bottom of a hole. Made from high speed steel with a bright finish, this tap holds an H3 thread limit and a 2B class of fit, making it suitable for standard tolerance threaded fastener applications. The overall length is 2 inches with a thread length of 0.38 inches. Licensed machinists, tool and die technicians, and maintenance mechanics will find this tap well suited for production and repair work.

This tap is rated for use in aluminum, copper alloys, low carbon steel, and magnesium. The bottoming chamfer design is specifically intended for blind hole threading where full thread engagement near the bottom of the bore is required. The 6-32 UNC designation is common in light-duty fastening applications found in electrical enclosures, electronic assemblies, HVAC equipment panels, and general sheet metal fabrication. The shank diameter is 0.141 inches, compatible with standard tap holders and T-handle tap wrenches sized for small-diameter taps.

Key Features

• Bottoming chamfer allows threading to the bottom of blind holes
• High speed steel construction provides durability across rated materials
• H3 thread limit and 2B class of fit for standard tolerance threading
• Bright finish with no coating for straightforward regrinding
• Right-hand cut, 2-flute design compatible with standard tap holders
• Rated for aluminum, copper alloys, low carbon steel, and magnesium

Compatibility

Designed as an OEM-style replacement or direct-use tap for blind hole threading applications requiring a 6-32 UNC thread form in aluminum, copper alloys, low carbon steel, or magnesium workpieces.

Installation Notes

This tap is installed by machinists and maintenance technicians using a standard tap wrench or machine tap holder. Always ensure the pilot hole diameter matches the required tap drill size for 6-32 UNC before threading. Apply appropriate cutting fluid for the workpiece material to extend tool life and reduce galling. For blind hole work, use care when approaching the bottom of the bore to avoid tap breakage.