Scientific Cutting Tools AS5202-06R Porting Tool Reamer

Product Description

The SCIENTIFIC CUTTING TOOLS AS5202-06R is a carbide-tipped porting tool designed to machine and finish O-ring face seal (ORFS) ports to AS5202 and MS33649 standards. It combines a spotface cutter and a reamer pilot into a single tool, cutting a 1.0120-inch spotface diameter and threading to a 9/16-18 UNJF port size in one operation. The straight-flute, 3-flute design provides clean, controlled cutting on tube end fittings and hydraulic or fluid system ports. Intended for use by machinists, aerospace technicians, and fluid system assemblers working on precision tube and port applications.

This tool is used when preparing or repairing ORFS ports on hydraulic lines, aerospace fluid systems, and industrial tube assemblies. It is compatible with 3/8-inch OD tubing (Tube Dash 6) and is suited for workpieces requiring a flat, square spotface surface for proper O-ring seating. The 30-degree seal angle and UNJF thread type align with AS5202 and MS33649 specifications, making this tool appropriate for aerospace-grade and mil-spec port preparation work on tube assemblies in both fabrication and field repair settings.

Key Features

• Carbide-tipped construction for long tool life on hard or abrasive workpiece materials
• Combined spotface and reamer pilot in one tool - machines port face and pilots in a single pass
• Meets AS5202 and MS33649 standards for ORFS port geometry
• 3 straight flutes with bright/uncoated finish for clean chip evacuation
• 1/2-inch straight shank fits standard drill chucks and collet holders
• 30-degree seal angle ensures proper O-ring seating surface on finished ports

Compatibility

Designed for use with 3/8-inch OD tubing (Tube Dash 6) and 9/16-18 UNJF port threads per AS5202 and MS33649 standards.

Installation Notes

This tool is installed and operated by machinists or fluid system technicians using a drill press, milling machine, or appropriate rotary driver with a collet or chuck accepting a 1/2-inch straight shank. Secure the workpiece firmly before operation to prevent movement during spotfacing. Verify port thread size and tube dash number against system drawings before cutting. Follow applicable aerospace or industrial fluid system standards for port preparation procedures and inspection criteria.