Sandvik Coromant 6770733 Indexable Drill Insert 880LM

Product Description

The SANDVIK COROMANT 6770733 is a solid carbide indexable drill insert designed for use with 880-series indexable drills in metal cutting and hole-making operations. Built to grade 4344 with a PVD-applied TiAlN2 coating, it delivers consistent cutting performance in demanding ferrous and non-ferrous machining environments. The insert features an 880LM chipbreaker geometry optimized for chip control in through-hole and blind-hole drilling applications. Key dimensional specs include a 6 mm (0.2362 inches) inscribed circle, 0.1024-inch thickness, and a 0.60 mm (0.0236-inch) corner radius. Right-hand cutting orientation. Installed by machinists, CNC operators, and tool-room technicians.

This insert is suited for indexable drill tooling in production machining settings, including CNC machining centers and drill presses running 880-style drill bodies. The LM chipbreaker geometry is intended for light to medium chip loads, making it a practical choice for controlled drilling in steel and cast iron. It fits square-style insert pockets with a 2.5 mm hole diameter and corresponds to insert size 030306. Typical applications include general-purpose drilling in job shops and high-volume production facilities.

Key Features

• Solid carbide construction, grade 4344, for rigidity and wear resistance
• PVD TiAlN2 coating for elevated temperature resistance and extended tool life
• 880LM chipbreaker geometry for controlled chip formation in light to medium cuts
• Square insert shape with 0.60 mm corner radius for stable seating in 880-series pockets
• Right-hand cutting orientation
• 6 mm inscribed circle with 2.5 mm mounting hole diameter, insert size 030306

Compatibility

Designed for use with SANDVIK COROMANT 880-series indexable drill bodies that accept square-style inserts with a 2.5 mm hole diameter and insert size 030306. Consult the 880-series tooling catalog to confirm pocket geometry and insert seat compatibility before installation.

Installation Notes

Installation is performed by a qualified machinist or tooling technician. Ensure the drill body is removed from the spindle and fully secured before replacing inserts. Use the correct Torx or hex key as specified by the drill body manufacturer to seat the insert screw to the recommended clamping interface — do not overtighten. Inspect the insert pocket for wear, chips, or debris before seating the new insert, and verify the insert is fully flush and locked before returning the tool to service.