Accupro 75551721 Dnmg Carbide Turning Insert Cvd Coated

Product Description

The ACCUPRO 75551721 is a DNMG-style indexable carbide turning insert designed for precision external turning operations on CNC lathes and turning centers. Manufactured in the CI series, this insert carries an ISO code of DNMG110408 and an ANSI code of DNMG332. It features a 55-degree diamond (rhombic) insert shape, a CVD coating, and a neutral hand orientation. The ACM20P grade provides high wear resistance with moderate toughness, making it well suited for continuous and semi-interrupted cuts on steel and stainless steel workpieces. Four available cutting edges extend tool life per insert. The IPK+ chip breaker geometry promotes controlled chip evacuation at typical production feed rates.

This insert is intended for production turning applications on steel (P) and stainless steel (M) workpiece materials where consistent surface finish and dimensional accuracy are required. Typical applications include shaft turning, facing, and profiling on CNC lathes in job shop and production environments. The negative side clearance and M tolerance code make this insert compatible with toolholders designed for negative-rake DNMG insert pockets. It is installed and managed by machinists and CNC setup technicians in manufacturing facilities.

Key Features

• CVD-coated ACM20P carbide grade for high wear resistance on steel and stainless steel
• 55-degree diamond insert shape (DNMG) with 4 usable cutting edges per insert
• IPK+ chip breaker geometry for controlled chip formation at production feed rates
• 0.0315 inch (0.80 mm) corner radius suited to moderate-finish turning passes
• Maximum depth of cut of 0.1654 inches (4.20 mm)
• Compatible with clamp, lever lock, pin, and screw toolholder holding methods

Compatibility

Designed for use in negative-rake DNMG toolholders accepting ISO size code 110408 inserts with a clamp, lever lock, pin, or screw holding method. Suitable for primary workpiece material codes P (steel) and M (stainless steel).

Installation Notes

Installation is performed by a qualified machinist or CNC setup technician. Power down and lock out the machine spindle before indexing or replacing inserts. Seat the insert fully in the pocket and confirm the holding clamp or screw is torqued per the toolholder manufacturer specification before resuming cuts. Inspect the insert pocket for chips or wear before seating a new cutting edge.