Sandvik Coromant 6770737 Indexable Drill Insert 880LM

Product Description

The SANDVIK COROMANT 6770737 is a solid carbide indexable drill insert designed for use with 880-series indexable drills in metal-cutting operations. This insert carries the 4344 manufacturer grade and features a TiAlN2 PVD coating for heat resistance and extended tool life in demanding drilling applications. The square insert shape with an LM chipbreaker geometry promotes controlled chip evacuation. The inscribed circle measures 7.40 mm (0.2913 inches) and the corner radius is 0.70 mm (0.0276 inches), making this a compact, precision-ground insert suited for high-productivity hole-making. Licensed machinists and CNC operators are the primary installers of this tooling component.

This insert is intended for use in rotating metal-cutting applications on CNC machining centers, lathes with live tooling, and dedicated drilling machines. The LM chipbreaker is optimized for light-to-medium feed rates in a range of workpiece materials. Right-hand cutting direction is standard for this insert. It fits within the 880 insert style family and is sized to the 040307 insert size designation. Typical applications include production drilling in steel, cast iron, and similar ferrous materials where controlled chip formation and coating durability are priorities.

Key Features

• Solid carbide substrate provides rigidity and wear resistance in high-speed drilling
• TiAlN2 PVD coating delivers thermal protection and extended edge life
• LM chipbreaker geometry supports controlled chip evacuation at light-to-medium feeds
• 7.40 mm inscribed circle with 0.70 mm corner radius for precision fitment
• Square insert shape in the 880 insert style family with right-hand cutting direction
• 040307 insert size for direct replacement reference in 880-series drill bodies

Compatibility

Designed as an OEM-specification replacement or direct-fit insert for SANDVIK COROMANT 880-series indexable drill bodies requiring the 040307 insert size in a square, right-hand configuration.

Installation Notes

Insert seating and clamping should be performed by a qualified machinist following the drill body manufacturer torque specifications for the applicable clamping screw. Ensure the drill body pocket and locating surfaces are clean and free of chips before seating the insert. Power down and lock out the machine spindle before any insert change. Handle carbide inserts carefully to avoid chipping the cutting edges during installation.