Osg 1730201 Spiral Point Tap 6-32 Unc 2 Flute Plug

Product Description

The OSG 1730201 is a spiral point plug tap designed for threading 6-32 UNC internal threads in ferrous materials. Manufactured from vanadium high-speed steel (HSS-E) with a steam oxide coating, it delivers improved lubricity and corrosion resistance during cutting operations. The plug chamfer eases entry into through-holes, while the spiral point geometry pushes chips forward ahead of the tap rather than packing them in the flutes. This 2-flute design with an H3 thread limit and 2B class of fit is suited for production threading on manual machines, CNC tapping centers, and hand-held equipment used by machinists and maintenance technicians.

This tap is intended for threading through-hole applications in hardened steel, low-carbon steel, medium-carbon steel, and stainless steel workpieces. The steam oxide finish helps reduce galling when working stainless. At 2.0 inches overall length with an 11/16-inch thread length and a 0.141-inch shank diameter, it fits standard tap holders and chucks used in light machining, fabrication shops, and HVAC or electrical panel assembly where 6-32 machine screw threads are common.

Key Features

• 6-32 UNC thread form with 2B class of fit and H3 thread limit for standard tolerance internal threads
• Spiral point design pushes chips forward, keeping flutes clear during through-hole tapping
• Vanadium high-speed steel (HSS-E) construction for increased wear resistance over standard HSS
• Steam oxide coating reduces friction and improves tap life in ferrous materials
• Plug chamfer provides gradual thread engagement, reducing tap breakage on entry
• Right-hand thread direction, compatible with standard tap holders and tapping attachments

Compatibility

Rated for use in hardened steel, low-carbon steel, medium-carbon steel, and stainless steel. Suited for through-hole applications requiring 6-32 UNC internal threads with a 2B class of fit.

Installation Notes

This tap is installed and operated by machinists or maintenance technicians using standard tap wrenches, tapping heads, or CNC tapping centers. Always apply a cutting fluid or tapping compound appropriate for the workpiece material, particularly when threading stainless steel. Ensure the tap is properly aligned with the pre-drilled pilot hole before applying torque to avoid tap breakage. Inspect the tap for wear or chipping before each use and replace at the first sign of degradation.