Osg 1759501 Spiral Point Tap 6-32 Unc 3 Flute Plug

Product Description

The OSG 1759501 is a spiral point plug tap designed for threading 6-32 UNC holes in ferrous and high-strength materials. Manufactured from powdered metal and finished with a steam oxide coating, this tap provides enhanced lubricity and wear resistance during cutting operations. It features 3 flutes with a plug chamfer, a right-hand thread direction, and a thread limit of H4, making it suited for producing accurate, close-tolerance threads. With an overall length of 2 inches and a thread length of 0.377 inches, the 1759501 is a compact, production-ready tool installed by machinists and maintenance technicians across metal fabrication and mechanical assembly environments.

This tap is intended for use in drilling and tapping applications involving hardened steel, stainless steel, high-nickel alloy, titanium, alloy steel, and die steel. The spiral point geometry pushes chips forward ahead of the tap, making it well suited for through-hole applications where chip evacuation is critical. The steam oxide finish helps reduce galling and built-up edge when cutting tough, abrasion-resistant materials. It is a standard pick for production tapping lines, CNC machining centers, and manual drill press setups where thread quality and tool life are both priorities.

Key Features

• 6-32 UNC thread form with H4 thread limit for close-tolerance fitment
• Powdered metal construction for improved toughness and wear resistance over HSS
• Steam oxide coating reduces friction and galling in ferrous and high-strength alloys
• Spiral point geometry pushes chips forward, optimized for through-hole tapping
• Plug chamfer provides a balance between starting ease and thread engagement length
• Right-hand cut, no coolant-through requirement, non-interrupted thread profile

Compatibility

Rated for use in hardened steel, stainless steel, high-nickel alloy, titanium, alloy steel, and die steel. Designed for through-hole tapping operations on manual and CNC equipment using standard 6-32 UNC thread form.

Installation Notes

Installation and use of this tap should be performed by qualified machinists or maintenance technicians familiar with tapping speeds, feeds, and cutting fluid selection for the target material. Always secure the workpiece and ensure the tap is properly aligned with the pilot hole before engagement. Use appropriate cutting fluid for the base material, particularly when working with stainless steel or high-nickel alloys, to reduce heat buildup and extend tool life. Do not reverse the tap under power without confirming the machine is configured for tapping cycles.