Scientific Cutting Tools MS33649-11S Porting Tool Tube Dash 11

Product Description

The SCIENTIFIC CUTTING TOOLS MS33649-11S is a precision porting tool designed to machine and spotface tube port faces on hydraulic and pneumatic tube fittings per AS 5202 and MS 33649 standards. It produces a 1.602-inch spotface diameter with a plain pilot, and its 4-flute straight-flute design delivers clean, accurate seating surfaces required for leak-free UNJF threaded tube connections. With an overall length of 3.75 inches and a 3/4-inch shank, it mounts in standard milling or drill press setups. This tool is used by aerospace, industrial maintenance, and fluid-systems technicians who need dimensionally verified port faces on tube assemblies.

The MS33649-11S is suited for workpieces requiring a Tube Dash 11 port configuration with an 11/16-inch tube outside diameter. It is commonly used in aerospace maintenance, fluid power systems, and industrial hydraulic manifold work where AS 5202 and MS 33649 port geometry must be held to tight tolerances. The 30-degree seal angle conforms to the standard taper required for proper fitting engagement and reliable sealing. The bright finish shank is compatible with standard collet and chuck toolholding systems.

Key Features

• Spotface diameter of 1.602 inches per MS 33649 and AS 5202 standards
• Plain pilot with minimum pilot diameter of 0.923 inches and maximum of 1.0255 inches
• 4 straight flutes for controlled chip evacuation during spotfacing operations
• 30-degree seal angle for proper seating geometry on UNJF tube ports
• 3/4-inch shank diameter with 2.12-inch shank length fits standard toolholding
• Bright finish - no coating to alter critical dimensional tolerances

Compatibility

Designed for Tube Dash 11 port applications with 11/16-inch tube outside diameter, conforming to AS 5202 and MS 33649 port standards on tube workpieces requiring UNJF thread form and a 30-degree seal angle.

Installation Notes

This tool is installed and operated by machinists, aerospace technicians, or fluid-systems mechanics using a milling machine, drill press, or CNC spindle with an appropriate collet or drill chuck sized for the 3/4-inch shank. Secure the workpiece firmly before beginning the spotfacing operation and verify pilot engagement before applying feed pressure. Always confirm the port standard and tube dash number against engineering drawings before machining - an incorrect spotface diameter will result in a non-conforming port that cannot be reworked to a smaller dimension.