Sandvik Coromant 5757934 Threading Insert 5 Tpi Acme Solid Carbide

Product Description

The SANDVIK COROMANT 5757934 is a solid carbide laydown threading insert designed for cutting external Acme threads on CNC lathes and turning centers. Part of the CoroThread 266 series, this insert features a 5 threads-per-inch (TPI) pitch, a 1/2-inch inscribed circle (12.70 mm), and a TiN PVD coating applied for wear resistance and extended tool life. The 60-degree included angle and right-hand orientation make it suited to standard right-hand Acme thread forms. At 5.56 mm (0.2190 inches) thick, the insert seats securely in compatible 266-series toolholders. Machinists and CNC operators working in metalworking, toolroom, and production turning environments install this insert for precision external thread generation.

This insert is used for external Acme thread cutting in turning applications on ferrous and compatible workpiece materials. The Acme thread form is common in power-transmission components such as lead screws, jack screws, and valve stems. The F chipbreaker geometry is suited to controlled-chip threading operations. This insert is sold individually (package quantity of 1) and is subject to a minimum order quantity of 10 units. It is appropriate for production and maintenance machining environments where Acme thread profiles are required.

Key Features

• Solid carbide substrate with TiN PVD coating for wear resistance in external threading
• Right-hand external Acme thread form, 5 TPI pitch, 60-degree included angle
• 1/2-inch inscribed circle (12.70 mm) for use in 266-series toolholders
• F chipbreaker geometry for controlled chip formation during threading passes
• Manufacturer grade 1020 for consistent cutting performance
• Insert style 266, CoroThread 266 series, single tooth per side

Compatibility

Designed for use in SANDVIK COROMANT CoroThread 266 series toolholders accepting a 22-size, 1/2-inch inscribed circle laydown threading insert. Manufacturers catalog number 266RG-22AC01F050E 1020 may be used to confirm toolholder compatibility with Sandvik Coromant documentation.

Installation Notes

This insert is installed by a qualified machinist or CNC operator. Power down and lock out the machine spindle before changing inserts. Seat the insert fully in the toolholder pocket and secure with the appropriate clamping screw to manufacturer torque specification found in the CoroThread 266 toolholder documentation. Inspect the insert seat and clamping components for wear or debris before installation to ensure proper seating and thread accuracy.