Osg 2880301 Spiral Point Tap 8-32 Unc 2 Flute Plug

Product Description

The OSG 2880301 is a spiral point plug tap designed for cutting right-hand internal threads to an 8-32 UNC specification in a 3B class of fit. Manufactured from high-speed steel with a steam oxide coating, this tap is built for general-purpose threading in production and maintenance environments. The spiral point geometry pushes chips forward ahead of the cutting edge, making it well suited for through-hole applications. With 2 flutes and a thread length of 0.39 inches, it delivers clean thread form across a range of workpiece materials. Licensed machinists, tool-and-die technicians, and maintenance mechanics are the primary users.

This tap is appropriate for threading through-holes in aluminum, cast aluminum, low-carbon steel, and medium-carbon steel workpieces. The 8-32 UNC thread form is common in light mechanical assemblies, enclosures, and electronic hardware. The plug chamfer provides a gradual lead-in that suits most standard through-hole threading operations on manual and CNC equipment. Coolant-through is not supported, so it is intended for conventional flood or dry cutting applications.

Key Features

• Spiral point geometry pushes chips forward, keeping flutes clear in through-hole applications
• High-speed steel construction provides toughness for a broad range of ferrous and non-ferrous materials
• Steam oxide coating reduces friction and improves chip flow
• Plug chamfer for standard through-hole lead-in
• 3B class of fit for general-purpose internal thread tolerance
• Right-hand thread direction, 2 flutes

Compatibility

Designed for threading 8-32 UNC through-holes in aluminum, cast aluminum, low-carbon steel, and medium-carbon steel. Suitable for use in manual drill presses, tapping heads, and CNC machining centers that accept standard straight-shank taps.

Installation Notes

Install in a properly sized tap holder or chuck rated for the shank diameter before use. Ensure the workpiece is securely fixtured and that the correct 8-32 tap drill size has been used to produce the pilot hole before tapping. Apply appropriate cutting fluid for the workpiece material even though coolant-through is not available on this tap. Inspect thread form periodically and replace the tap at the first sign of chipping or excessive wear to avoid damaging the workpiece.