Sumitomo U102103 Grooving Insert SG3125 EH520V Solid Carbide

Product Description

The SUMITOMO U102103 is a solid carbide grooving insert designed for precision groove turning operations on CNC lathes and turning centers. Built to the SumiNotch series standard, this insert features a TiAlN coating and a neutral hand orientation, making it suitable for a wide range of grooving and parting applications. The cutting width measures 0.125 inches with a maximum depth of cut of 0.150 inches, and a cutting height of 0.344 inches. The insert carries ANSI code SG-3125R and conforms to ISO 13399, giving tooling engineers a consistent data interface for tool management systems. Installation is handled by machinists and CNC setup technicians.

This insert is intended for use in applications requiring consistent, repeatable groove profiles across universal workpiece materials. The manufacturer grade EH520V with TiAlN finish supports cutting across material groups K, M, N, P, and S, covering cast iron, stainless steel, nonferrous metals, steel, and high-temperature alloys. The SumiNotch insert style fits compatible SumiNotch grooving toolholders and blade-style bodies designed for the SG-3125 insert seat. Typical applications include external grooving, facing grooves, and profile turning on production turning equipment.

Key Features

• Solid carbide construction with TiAlN coating for wear and heat resistance
• Neutral hand orientation for flexible grooving setups
• 0.125 inch cutting width with 0.150 inch maximum depth of cut
• Corner radius range of 0.005 to 0.010 inches for controlled edge geometry
• Compatible with universal workpiece material groups K, M, N, P, and S
• Conforms to ANSI and ISO 13399 standards for tooling data interoperability

Compatibility

Designed as an OEM-style replacement insert for SumiNotch series grooving toolholders and blade bodies that accept the SG-3125 insert seat geometry per ANSI code SG-3125R.

Installation Notes

This insert is installed and changed by machinists or CNC tooling technicians. Power down and lock out the machine spindle before changing inserts. Use the correct insert clamping screw torque per the toolholder manufacturer specification and inspect the insert pocket seat for debris or damage before seating the new insert. Do not exceed the maximum depth of cut rating for the insert or the toolholder body.