Scientific Cutting Tools AS5202-02SA Porting Tool

Product Description

The SCIENTIFIC CUTTING TOOLS AS5202-02SA is a carbide-tipped porting tool designed to machine and face hydraulic or pneumatic tube port seats to AS5202 and MS33649 standards. It produces a 0.7420-inch spotface diameter on 5/16-24 UNJF threaded ports and is sized for 1/8-inch outside diameter tubing (Tube Dash 2). The AlTiN coating improves heat resistance and tool life during cutting. The plain pilot, 3-flute straight-flute geometry, and straight 1/2-inch shank make this tool suitable for precision port preparation in aerospace, hydraulic, and pneumatic system fabrication and maintenance. Overall length is 3 inches.

This porting tool is used when preparing or reconditioning tube fitting ports that conform to AS5202 or MS33649 specifications. Typical applications include aerospace hydraulic systems, fluid power assemblies, and pneumatic manifolds where a clean, dimensionally correct spotface seat is required before installing tube fittings. The tool is intended for use on workpiece material in tube port configurations requiring a 30-degree seal angle and a 5/16-24 UNJF thread form.

Key Features

• Carbide-tipped construction with AlTiN coating for extended tool life and heat resistance
• 0.7420-inch spotface diameter for AS5202 and MS33649 port standards
• 5/16-24 UNJF thread size with 30-degree seal angle
• Plain pilot with 0.2740-inch minimum and 0.3305-inch maximum pilot diameter
• 3-flute straight-flute geometry for clean, consistent cutting action
• 1/2-inch straight shank, 1.0000-inch head length, 2.0000-inch shank length

Compatibility

Designed for use on tube port workpieces conforming to AS5202 and MS33649 standards with 1/8-inch OD tubing (Tube Dash 2) and 5/16-24 UNJF port thread size.

Installation Notes

This tool is installed and operated by machinists or fluid-power technicians using a drill press, milling machine, or appropriate CNC or manual spindle with a compatible 1/2-inch straight shank holder. The workpiece hydraulic or pneumatic system must be fully depressurized and de-energized before port machining begins. Ensure the pilot is properly engaged in the existing port bore before applying cutting pressure to maintain concentricity. Follow applicable aerospace or fluid power system specifications and shop safety procedures when machining port seats.