Sandvik Coromant 5756111 Indexable Drill Insert Wcmx 235

Product Description

The SANDVIK COROMANT 5756111 is a solid carbide indexable drill insert designed for use in indexable-insert drilling applications in machining and metalworking operations. Manufactured to the WCMX insert style in a trigon (triangular) shape, this insert carries a CVD-applied dual coating of TiCN and TiN for improved wear resistance and tool life. It features an inscribed circle of 0.3126 inches (7.94 mm), a thickness of 0.1252 inches, and a 0.80 mm corner radius. Designed for right-hand cutting, this insert is installed and replaced by machinists and CNC tooling technicians servicing indexable drill bodies.

This insert is suited for drilling operations in ferrous and non-ferrous materials where a WCMX-style trigon insert with a 58 chipbreaker geometry and manufacturer grade 235 is specified. The 7-degree relief angle and 0.80 mm corner radius support controlled chip formation in moderate to high-feed drilling cycles. Insert size designation is 050308, with a hole diameter of 0.1260 inches (3.2 mm), making it compatible with WCMX seat pockets requiring that geometry. Typical applications include production drilling on CNC machining centers and lathes where indexable tooling is used to reduce cycle time versus solid carbide drills.

Key Features

• WCMX insert style in trigon shape for use in indexable drill bodies with matching seat geometry
• CVD-applied TiCN and TiN dual coating for enhanced surface hardness and oxidation resistance
• Manufacturer grade 235 with 58 chipbreaker for controlled chip evacuation in drilling
• 0.80 mm corner radius (0.0315 inches) reduces edge chipping on entry and exit
• 7-degree relief angle supports positive cutting action and reduced cutting forces
• Right-hand cutting orientation; insert size 050308

Compatibility

Designed as a replacement indexable drill insert for WCMX-style insert seats requiring a trigon shape, 050308 insert size, 3.2 mm hole diameter, and 7-degree relief angle. Verify seat geometry and chipbreaker requirements against the drill body specification before ordering.

Installation Notes

Installation is performed by a machinist or CNC tooling technician. The drill body must be fully removed from the spindle and the machine must be in a locked-out, de-energized state before servicing any indexable insert. Use the correct torx or hex key to the fastener specification listed in the drill body documentation — do not overtighten the clamping screw. Inspect the insert seat and clamping screw for wear or damage before seating the new insert.