Osg 1500200900 Plug Thread Gage M8x1.25 6H Class

Product Description

The OSG 1500200900 is a double-end plug thread gage used to verify internal M8x1.25 threads to the 6H tolerance class. One end is the Go member and the opposite end is the No Go member, allowing a technician or machinist to confirm both the minimum and maximum thread limits in a single tool. The body is manufactured from high speed steel for wear resistance in production and inspection environments. A handle is included, so the gage is ready to use out of the package. This type of thread gage is standard equipment in machine shops, tool rooms, and precision manufacturing facilities.

This gage is suited for inspecting M8x1.25 tapped holes in metalworking, fabrication, and assembly operations where 6H thread tolerances are specified. It is commonly used by machinists, quality control inspectors, and toolroom technicians to verify threaded components before assembly. The double-end design keeps both Go and No Go members on one tool, reducing the risk of using the wrong gage and speeding up inspection workflow on the floor or at the bench.

Key Features

• Go and No Go ends on a single double-end tool for complete thread limit inspection
• M8x1.25 thread size with 6H classification for precise tolerance verification
• High speed steel construction for durability and wear resistance
• Handle included — no additional accessories required to begin use
• Compact size at 3.5 inches in length for easy bench or on-machine use

Compatibility

Designed as an OEM-style inspection tool for verifying internal M8x1.25 6H class threads in tapped holes across metalworking and manufacturing applications.

Installation Notes

Thread plug gages are inspection instruments and should be handled by qualified machinists or quality control personnel familiar with thread gage standards. Always clean the tapped hole and gage threads before inspection to prevent false readings or damage to the gage. Do not force the No Go end into a threaded hole; if it enters beyond two turns, the hole is out of tolerance. Store the gage in its protective case when not in use to preserve calibration and surface condition.