Sumitomo 19RBAFL Turning Insert CNMG543 AC830P Carbide

Product Description

The SUMITOMO 19RBAFL is a solid carbide coated turning insert in the CNMG543EMU geometry with AC830P grade coating applied via CVD process. It features an 80-degree diamond (rhombic) insert shape with a neutral hand orientation and a negative rake and side clearance configuration. The inscribed circle measures 5/8 inch (0.6250 inches), insert length is 0.6339 inches, thickness is 1/4 inch (0.2500 inches), and the corner radius is 3/64 inch (0.0469 inches). This insert is designed for CNC and manual turning operations and is installed by machinists and toolroom professionals in production or job-shop environments.

The 19RBAFL suits light to medium machining applications on steel (ISO P) and stainless steel (ISO M) workpiece materials. The AC830P grade delivers moderate wear resistance combined with high toughness, making it appropriate for interrupted cuts and variable stock conditions. The EMU chip breaker geometry is suited for light and medium machining passes. The insert conforms to both ANSI (CNMG543) and ISO 13399 (CNMG160612N-MU) standards, fitting toolholders designed for CNMG-style inserts held by clamp or pin methods.

Key Features

• CVD-coated solid carbide construction for wear resistance and thermal stability
• AC830P grade with moderate wear resistance and high toughness for steel and stainless steel
• 80-degree diamond (rhombic) insert shape for versatile turning geometry
• EMU chip breaker optimized for light and medium machining operations
• Neutral hand insert compatible with clamp and pin insert holding methods
• Dual standard compliance: ANSI CNMG543 and ISO 13399 CNMG160612N-MU

Compatibility

Compatible with CNMG-style turning toolholders that accept a 5/8-inch inscribed circle insert with clamp or pin holding. Conforms to ANSI insert code CNMG543 and ISO insert code CNMG160612, allowing use in any toolholder designed for that standard geometry. Primary workpiece materials are steel (ISO P) and stainless steel (ISO M).

Installation Notes

Installation is performed by machinists using the appropriate CNMG-compatible toolholder with a clamp or pin retention system. Ensure the machine spindle is fully stopped and all energy is locked out before changing inserts. Inspect the toolholder pocket and seating surface for chips or wear before seating the new insert. Follow the toolholder manufacturer torque specifications for the clamping screw, as over-tightening can fracture carbide inserts.