Scientific Cutting Tools AS5202-08R Porting Tool Reamer

Product Description

The SCIENTIFIC CUTTING TOOLS AS5202-08R is a precision porting tool designed to machine AS 5202 and MS 33649 port faces in hydraulic and pneumatic tubing systems. It combines a reamer-style pilot with a spotface cutter to produce the flat seating surface and pilot bore required for tube fitting ports. The tool features a 1.24-inch spotface diameter, a 1/2-inch tube outside diameter compatibility, and a 30-degree seal angle. With 4 straight flutes and a bright uncoated finish, it is suited for use by aerospace, industrial maintenance, and fluid-power technicians working to exacting port standards.

This porting tool is used when machining or refacing UNJF-threaded tube ports in metal workpieces such as manifolds, fittings, and hydraulic blocks. It is specifically sized for Tube Dash 8 applications, making it appropriate for systems using 1/2-inch OD tubing. The reamer pilot guides the cutter precisely into the existing bore before the spotface engages, ensuring concentricity and a clean, leak-free seating surface. It is commonly used in aerospace maintenance, heavy equipment hydraulics, and industrial fluid-power fabrication environments where AS 5202 and MS 33649 port compliance is required.

Key Features

• 1.24-inch spotface diameter machines AS 5202 and MS 33649 compliant port faces
• Reamer-style pilot with 0.693-inch minimum and 0.7715-inch maximum pilot diameter for precise bore guidance
• 30-degree seal angle matches standard tube fitting port geometry
• 4 straight flutes with bright uncoated finish for clean metal removal
• UNJF thread type compatibility for standard fluid-power port applications
• 3/4-inch shank diameter for secure chuck or collet holding in milling or drill-press setups

Compatibility

Designed for Tube Dash 8 applications with 1/2-inch OD tubing. Conforms to AS 5202 and MS 33649 port standards for UNJF-threaded tube fitting ports in metal workpieces.

Installation Notes

This tool is installed and operated by machinists or fluid-power technicians using a milling machine, drill press, or hand-held power tool with an appropriate chuck or collet sized for the 3/4-inch shank. Shut down and de-energize all hydraulic or pneumatic pressure in the system before performing any port machining or refacing operations. Use appropriate cutting fluid for the workpiece material to extend tool life and improve surface finish. Verify port dimensions against AS 5202 or MS 33649 specifications before assembly to ensure a proper seal.