Osg 2807400 Spiral Point Tap 6-32 Unc 2 Flute 3B Hss

Product Description

The OSG 2807400 is a spiral point tap designed for cutting 6-32 UNC internal threads in a wide range of ferrous and non-ferrous materials. Built from Vanadium High Speed Steel (HSS-E) with a bright finish, this right-hand tap features a plug chamfer and 2 flutes, making it well suited for through-hole threading applications where chip evacuation ahead of the tap is required. The H2 thread limit holds a 3B class of fit, providing consistent dimensional accuracy across production runs. Overall length is 2 inches with a thread length of 0.37 inches and a shank diameter of 0.141 inches.

This tap is appropriate for use in light-duty machining, maintenance, and fabrication work involving aluminum, cast iron, low-, medium-, and high-carbon steel, alloy steel, die steel, and stainless steel. The 6-32 UNC thread size is common in electronic enclosures, instrument panels, and small mechanical assemblies. It is typically run in a drill press, CNC machining center, or hand-held tapping attachment where spindle speed and axial alignment can be controlled.

Key Features

• Vanadium High Speed Steel (HSS-E) construction for improved wear resistance across a broad material range
• Spiral point geometry pushes chips forward ahead of the tap, reducing clogging in through-hole applications
• H2 thread limit maintains 3B class of fit for consistent thread quality
• Plug chamfer provides a gradual lead-in for controlled thread engagement
• Bright finish with no coating — suitable for use with standard cutting fluids and oils
• Right-hand cut, no coolant-through, non-interrupted thread form

Compatibility

Designed as an OEM-style threading tool for 6-32 UNC through-hole tapping operations in aluminum, stainless steel, hardened steel, high-carbon steel, low-carbon steel, medium-carbon steel, alloy steel, die steel, and cast iron workpieces.

Installation Notes

Installation of this tap should be performed by a qualified machinist or maintenance technician. Always secure the workpiece and ensure the tap is properly aligned with the pilot hole before engagement to avoid tap breakage. Apply an appropriate cutting fluid for the workpiece material, and back the tap off periodically to break and clear chips. Follow applicable shop safety procedures and equipment manufacturer guidelines for spindle speed selection.