Tungaloy 6811975 SNMG543TH AH120 Carbide Turning Insert

Product Description

The TUNGALOY 6811975 is a solid carbide turning insert in the SNMG-TH series, designated by ISO code SNMG543 and industry standard number SNMG 543 TH. It carries the AH120 manufacturer grade and features a TiAlN coating applied via PVD process. The insert has a 90-degree square shape with a negative rake angle of -20 degrees and a chamfered and honed cutting edge style. With 8 usable cutting edges and a 3/64 inch (0.0472 inch) corner radius, it is engineered for general turning, facing, and boring operations in demanding production environments. Licensed machinists and CNC operators are the primary installers and users.

This insert is suited for a wide range of workpiece materials, including steel, stainless steel, cast iron, superalloys, titanium, and hard materials, corresponding to ISO material codes P, M, K, S, and H. Material grades covered include P15, P25, M15, M25, K15, K30, S10, and S25. It is designed for multi-use applications such as turning, facing, and boring in both production and job-shop environments. The insert is held in place using a clamp and pin holding method and is compatible with toolholders dimensioned for the SNMG 543 insert size code.

Key Features

• TiAlN PVD coating on AH120 carbide grade for wear resistance across steel, stainless, cast iron, superalloys, and hard materials
• 8 cutting edges on a square 90-degree insert body maximize tool life per insert
• Chamfered and honed cutting edge style reduces chipping on entry and improves edge stability
• TH chip breaker geometry manages chip flow during turning, facing, and boring operations
• Neutral hand orientation fits standard right-hand and left-hand SNMG toolholders
• Meets ANSI and ISO dimensional standards for consistent fitment across compatible tooling systems

Compatibility

Designed as an OEM-style replacement and standard production insert for SNMG 543-style toolholders that accept a 5/8 inch inscribed circle, 1/4 inch thick square insert secured by clamp and pin. Compatible with toolholders conforming to ANSI and ISO standards for the SNMG insert family.

Installation Notes

Installation is performed by machinists or CNC setup technicians. Always power down and lock out the machine before changing inserts. Inspect the toolholder pocket and seating surface for chips or wear before seating the insert. Do not exceed the maximum depth of cut rating for the insert grade and workpiece material combination in use.