Osg 1737208 Spiral Point Tap 8-32 Unc Ticn Hss

Product Description

The OSG 1737208 is a spiral point tap designed for cutting internal threads in a wide range of metallic workpieces. It produces 8-32 UNC right-hand threads and is manufactured from vanadium high-speed steel (HSS-E) with a TiCN coating for improved wear resistance and tool life. The plug chamfer style provides a gradual lead-in, making it well suited for through-hole tapping operations. With 3 flutes and an H5 thread limit, it delivers consistent thread tolerance in production and maintenance environments. Overall length is 2.126 inches and thread length is 0.381 inches. This tap is installed and operated by machinists, tool and die makers, and maintenance technicians.

The OSG 1737208 is appropriate for through-hole tapping in a variety of materials including hardened steel, low-carbon steel, medium-carbon steel, and stainless steel. It is suited to both manual tapping operations and machine tapping on drill presses, CNC machining centers, and tapping machines in light industrial, manufacturing, and maintenance shop environments. The 8-32 UNC thread form is a common fastener size in electrical enclosures, instrumentation, and light mechanical assemblies.

Key Features

• 8-32 UNC thread form with H5 thread limit for consistent oversize tolerance control
• Vanadium high-speed steel (HSS-E) construction for improved toughness and wear resistance over standard HSS
• TiCN coating extends tool life and reduces friction in steel and stainless steel applications
• Plug chamfer style optimized for through-hole tapping
• Right-hand thread direction; compatible with standard tapping chucks and tap holders
• 3-flute design promotes chip pushing ahead of the cut in through-hole applications

Compatibility

Designed for tapping 8-32 UNC through-holes in hardened steel, low-carbon steel, medium-carbon steel, and stainless steel. Coolant-through is not supported; external coolant or cutting fluid application is recommended for best results.

Installation Notes

This tap is intended for use by qualified machinists or maintenance technicians familiar with threading operations. Secure the workpiece firmly before tapping and ensure the tap is properly aligned with the drilled hole to avoid breakage. Use an appropriate cutting fluid or tapping compound for the workpiece material. For machine tapping, verify spindle speed and feed rate are within the tool manufacturer's recommended range for the material and tap size.