Scientific Cutting Tools AS5202-06SA Porting Tool Carbide

Product Description

The SCIENTIFIC CUTTING TOOLS AS5202-06SA is a carbide-tipped porting tool designed for spotfacing and porting operations on hydraulic and pneumatic tube fittings. It produces a 1.0120-inch spotface diameter to the AS5202 and MS33649 standards, which govern straight-thread O-ring port geometry. The tool features a 3-flute straight flute configuration with an AlTiN coating for improved wear resistance and tool life in production and MRO environments. A plain straight pilot guides the tool concentrically into the port for consistent results. Licensed machinists, tool and die makers, and aerospace MRO technicians are the primary users of this tool.

This porting tool is suited for creating or refurbishing 9/16-18 UNJF O-ring boss ports conforming to AS5202 and MS33649 specifications. It is designed for use on tube workpieces with a 3/8-inch outside diameter, corresponding to a Dash 6 tube designation. The straight shank allows mounting in standard drill press or milling machine chucks. It is appropriate for precision port preparation in aerospace, military, and industrial fluid power assemblies where port geometry and surface finish are critical to seal performance.

Key Features

• 1.0120-inch spotface diameter meets AS5202 and MS33649 O-ring boss port standards
• Carbide-tipped construction with AlTiN coating for extended tool life and heat resistance
• 3-flute straight flute geometry for efficient chip evacuation on tube workpieces
• 30-degree seal angle for proper O-ring seating surface geometry
• Plain straight pilot with 0.5110-inch minimum and 0.5825-inch maximum pilot diameter for concentric alignment
• 1/2-inch straight shank fits standard machine tool holders

Compatibility

Designed for spotfacing and porting 9/16-18 UNJF O-ring boss ports per AS5202 and MS33649 on workpieces with 3/8-inch OD tubing (Dash 6). Workpiece compatibility is listed as tubes.

Installation Notes

This tool is intended for use by qualified machinists in a drill press, milling machine, or similar rigid machine tool setup. Secure the 1/2-inch straight shank firmly in the chuck or collet before operation and ensure the workpiece is clamped to prevent movement. Do not run the tool by hand or in a handheld drill where concentricity cannot be maintained, as port geometry is critical to O-ring seal integrity. Follow applicable aerospace or industrial fluid power specifications for port finish and dimensional verification after machining.