Sandvik Coromant 6770734 Indexable Drill Insert 880GM 4344

Product Description

The SANDVIK COROMANT 6770734 is a solid carbide indexable drill insert engineered for use in 880-series indexable drill bodies. Manufactured to the 4344 grade with a TiAlN2 PVD coating, this insert is designed for demanding drilling operations where wear resistance and edge stability are critical. The square insert shape follows the 880GM chipbreaker geometry, which controls chip formation across a range of workpiece materials. The inscribed circle measures 7.40 mm (0.2913 inches) and the insert thickness is 0.1102 inches. A 0.50 mm corner radius provides a balance between edge strength and surface finish at the cutting zone. Right-hand cutting direction is standard. Licensed HVAC techs and machinists working in precision drilling applications rely on this insert for consistent performance in production environments.

This insert is intended for use in compatible SANDVIK COROMANT 880-series indexable drill toolholders. Typical applications include through-hole and blind-hole drilling in metalworking operations across general machining, aerospace component production, and industrial manufacturing. The GM chipbreaker geometry suits a broad range of materials and cutting conditions. The insert fits as either a peripheral or center insert position depending on the specific drill body configuration it is paired with. Installation should be performed by qualified machinists or toolroom personnel familiar with indexable tooling systems.

Key Features

• Solid carbide substrate with TiAlN2 PVD coating for elevated wear and heat resistance
• 880GM chipbreaker geometry for effective chip control during drilling
• 7.40 mm inscribed circle with square insert shape and 0.50 mm corner radius
• Right-hand cutting direction; Insert Size designation 040305
• Hole diameter of 2.80 mm (0.1102 inches) for secure clamping in 880-series drill bodies
• 4344 manufacturer grade suited to a wide range of workpiece materials

Compatibility

Designed as a replacement-style insert for SANDVIK COROMANT 880-series indexable drill bodies that accept square carbide inserts with an 880GM chipbreaker and 040305 insert size designation.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician with experience in indexable tooling. Power down and lock out the machine spindle before seating or replacing inserts. Use the appropriate Torx or hex key as specified by the drill body manufacturer to achieve correct clamping force — do not overtighten the clamping screw. Inspect the insert pocket and clamping components for wear or debris before seating a new insert.