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The SUMITOMO U102091 is a solid carbide grooving insert designed for precision external grooving operations on CNC lathes and turning centers. It carries a TiAlN coating and is cataloged under the SumiNotch series. The insert features a 0.094-inch cutting width and a maximum depth of cut of 0.15 inches, making it well suited for narrow, controlled grooving passes. The neutral hand orientation allows straightforward mounting without directional tool path bias. Licensed machinists and CNC turning specialists install this insert as part of a dedicated grooving toolholder system.
This insert is intended for use in general-purpose turning applications across a broad range of workpiece materials. The primary workpiece material classification covers universal applications, including ISO material groups K, M, N, P, and S, which correspond to cast iron, stainless steel, non-ferrous metals, steel, and heat-resistant superalloys. It is appropriate for both production shop environments and job shop use where consistent groove geometry and surface finish are required in medium to high-volume turning cycles.
This insert uses the SG insert style and size code 3094, with ANSI code SG-3094R, and is designed for use with compatible SumiNotch series grooving toolholders that accept the SG-3094 insert format.
This insert is installed and replaced by a qualified CNC machinist or tooling technician. Before changing inserts, power down the machine and confirm the spindle is fully stopped. Seat the insert firmly in the toolholder pocket and verify clamping torque per the toolholder manufacturer's specification. Inspect the pocket and clamping screw for wear or debris before seating a new insert.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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