Scientific Cutting Tools MS33649-14S Porting Tool 4 Flute

Product Description

The SCIENTIFIC CUTTING TOOLS MS33649-14S is a straight-flute porting tool designed to spotface and prepare tube port faces to AS 5202 and MS 33649 standards. It produces a 1.79-inch spotface diameter on tube fittings with a 7/8-inch outside diameter, using a plain pilot for positive alignment. With 4 flutes, a 4-inch overall length, and a 1-inch shank diameter, it delivers consistent material removal in tight machining setups. Licensed machinists and tool and die professionals install this tool when preparing hydraulic, pneumatic, or fluid-system tube ports for leak-free sealing connections. The seal angle is ground to 30 degrees and the thread type is UNJ, matching the requirements of AS 5202 and MS 33649 port standards.

This porting tool is used on tube-to-port connections in aerospace, defense, and industrial fluid-power assemblies wherever AS 5202 or MS 33649 port geometry is required. It is compatible with workpieces specified as Tube Dash 14, corresponding to a 7/8-inch tube outside diameter. Typical applications include face-spotfacing operations on manifold blocks, hydraulic actuator housings, and fluid-distribution components that must meet tight sealing tolerances. The bright finish and straight flute geometry suit both ferrous and non-ferrous workpiece materials.

Key Features

• 1.79-inch spotface diameter matches AS 5202 and MS 33649 Tube Dash 14 port geometry
• Plain pilot type with 1.110-inch minimum and 1.2135-inch maximum pilot diameter for positive bore alignment
• 4 straight flutes with bright finish for clean, controlled cutting action
• 30-degree seal angle and UNJ thread type meet AS 5202 and MS 33649 standard requirements
• 1-inch shank diameter and 2.25-inch shank length suit standard milling chucks and collet holders
• 4-inch overall length with 1.75-inch head length provides clearance in typical port-spotfacing setups

Compatibility

Designed for use on tube port workpieces conforming to AS 5202 and MS 33649 standards at Tube Dash 14, with a 7/8-inch tube outside diameter.

Installation Notes

This tool is installed and operated by qualified machinists in a milling machine, drill press, or CNC machining center. Secure the shank firmly in a chuck or collet rated for the 1-inch shank diameter before starting the spindle. Ensure the workpiece is fixtured rigidly and the pilot bore is clean and free of burrs before engaging the pilot. Follow applicable shop safety practices and equipment manufacturer guidelines for speeds and feeds when spotfacing the port face.