Sandvik Coromant 6012451 Threading Insert 8-16 Tpi Solid Carbide

Product Description

The SANDVIK COROMANT 6012451 is a laydown threading insert from the CoroThread 266 series, designed for external right-hand threading operations on CNC lathes and turning centers. This solid carbide insert carries a PVD-applied TiN coating and a 7015 manufacturer grade, making it well suited for consistent thread form and tool life in a range of workpiece materials. It cuts a 60-degree V thread profile across a range of 8 to 16 TPI (1.50 to 3.00 mm pitch), with a 3/8-inch inscribed circle and a thickness of 5/32 inch. A single cutting edge per side and a chipbreaker designation of A complete the core geometry. Licensed machinists and CNC operators install and index this insert as part of standard threading toolholder setups.

This insert is intended for external threading applications in production and job-shop turning environments. The 60-degree V thread standard covers unified and metric thread forms commonly specified in industrial and mechanical assemblies. The 8-16 TPI range makes it practical for medium to coarser thread pitches on shafts, fastener blanks, and threaded components. The right-hand cutting orientation suits the majority of conventional lathe spindle directions. It fits CoroThread 266 series toolholders designed to accept the 16-size insert geometry.

Key Features

• Solid carbide substrate with PVD TiN coating for wear resistance and edge integrity
• 60-degree V thread form covers unified and metric external thread standards
• 8-16 TPI range (1.50-3.00 mm pitch) for medium to coarse external threads
• Right-hand cutting orientation for standard lathe spindle direction
• Chipbreaker code A for controlled chip formation during threading passes
• Manufacturer grade 7015 for balanced hardness and toughness in threading applications

Compatibility

Designed for use in CoroThread 266 series toolholders that accept the 16-size laydown threading insert. Catalog reference number 266RG-16VM01A002EE 7015 identifies the exact insert geometry and grade for toolholder matching.

Installation Notes

Index and seat this insert according to the toolholder manufacturer torque guidelines using the appropriate Torx or hex key — do not exceed the specified clamp screw torque for the 266 series holder. Confirm the spindle and all axes are fully stopped and the machine is in a safe state before indexing or replacing inserts. Inspect the insert pocket and clamping components for wear or debris before seating a new insert. Proper insert seating and clamping are critical to thread form accuracy and insert life.