Scientific Cutting Tools 6149-M27X2.0 Porting Tool Reamer

Product Description

The SCIENTIFIC CUTTING TOOLS 6149-M27X2.0 is a porting tool reamer designed for machining and finishing hydraulic port faces to ISO 6149-1 and SAE J2244-1 standards. It produces a 1.3465-inch (34.20 mm) spotface diameter with a 15-degree seal angle, creating the precise seating surface required for O-ring face seal fittings on M27x2.0 metric fine threaded ports. The four-flute straight flute geometry and bright finish provide clean, accurate cuts in steel and other common hydraulic manifold materials. Machinists and hydraulic system fabricators use this tool to ensure leak-free fitting installations in high-pressure fluid power assemblies.

This porting tool is intended for use on M27x2.0 metric fine thread port applications found in hydraulic manifolds, cylinders, valves, and related fluid power components. It is suited for both production machining environments and field or maintenance shop repair work where port faces require reconditioning or initial preparation. The reamer pilot guides the tool concentrically within the existing port bore, ensuring consistent spotface alignment across repeated operations. Industrial machinists and hydraulic system technicians are the primary users of this tool.

Key Features

• 1.3465-inch (34.20 mm) spotface diameter for M27x2.0 O-ring face seal ports
• 15-degree seal angle conforming to ISO 6149-1 and SAE J2244-1 standards
• Reamer pilot type with 0.9843-inch minimum pilot diameter and 0.7402-inch pilot length for concentric alignment
• Four straight flutes for smooth, accurate material removal
• 3/4-inch shank diameter with 2.1200-inch shank length for standard toolholder compatibility
• Bright (uncoated) finish suitable for general-purpose hydraulic port machining

Compatibility

Designed for machining O-ring face seal port spotfaces on M27x2.0 metric fine threaded hydraulic ports per ISO 6149-1 and SAE J2244-1 specifications.

Installation Notes

This tool is used by machinists in milling machines, drill presses, or CNC machining centers with appropriate toolholding for a 3/4-inch shank. Ensure the workpiece is securely fixtured and the hydraulic system or component is fully depressurized and de-energized before any machining operation. Use appropriate cutting fluid for the workpiece material to maintain tool life and surface finish quality. Follow applicable shop safety standards and manufacturer feed and speed recommendations for reamer-type porting tools.