Scientific Cutting Tools MS33649-10R Porting Tool Reamer

Product Description

The SCIENTIFIC CUTTING TOOLS MS33649-10R is a porting tool designed to machine precision spotface surfaces and pilot bores in tube fitting ports. It combines a reamer-style pilot with a spotface head to produce the flat seating surface and concentric bore required for MS 33649 and AS 5202 boss fittings. The tool features 4 straight flutes, a 1.415-inch spotface diameter, and a 30-degree seal angle. It is installed and operated by machinists, aircraft maintenance technicians, and fluid system fabricators working on hydraulic, pneumatic, or fuel tube assemblies.

This porting tool is intended for use on tube dash 10 ports, which correspond to a 5/8-inch tube outside diameter. It machines workpieces to accept UNJF-threaded boss fittings conforming to MS 33649 and AS 5202 standards. Typical applications include fabrication and repair of hydraulic manifolds, bulkhead fittings, and fluid distribution blocks in aerospace, defense, and industrial fluid power systems where leak-free boss port geometry is required.

Key Features

• 1.415-inch spotface diameter machines the seating surface for tube dash 10 boss ports
• Reamer-type pilot ensures concentric alignment during spotfacing
• 30-degree seal angle conforms to MS 33649 and AS 5202 boss fitting standards
• 4 straight flutes for clean, controlled material removal in ductile metals
• UNJF thread type compatibility for aerospace-grade fitting installation
• Bright finish with 3/4-inch shank diameter for use in standard milling or drill press chucks

Compatibility

Designed for machining MS 33649 and AS 5202 boss ports in tube dash 10 applications with a 5/8-inch tube outside diameter. Workpiece compatibility is listed as tubes and ported blocks requiring UNJF boss fitting seats.

Installation Notes

This tool is used by machinists and fluid system technicians operating drill presses, milling machines, or portable spotface equipment. The workpiece must be securely fixtured and all fluid pressure must be relieved before machining existing ports in assembled systems. Use appropriate cutting fluid for the workpiece material to maintain surface finish and tool life. Follow applicable aerospace or industrial fluid system standards for port geometry inspection after machining.