OSG Triangle Milling Insert: TNKU120608ER-GR (MPN 7812090)
SKU 3G-OTH-238840
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Frequently Asked Questions
What is the OSG Triangle Milling Insert TNKU120608ER-GR used for?
This OSG triangle milling insert is designed for general-purpose face and shoulder milling on steel, stainless steel, and cast iron. Its TNKU geometry and GR grade provide reliable chip evacuation and edge strength for medium-duty machining operations in industrial manufacturing.
What are the specifications of the OSG Triangle Milling Insert TNKU120608ER-GR?
The OSG Triangle Milling Insert TNKU120608ER-GR has manufacturer part number 7812090. It is a triangle-shaped indexable insert with a 12 mm inscribed circle, 6 mm thickness, and 8 mm corner radius. The GR grade is optimized for general-purpose milling in ferrous materials.
Where to buy the OSG Triangle Milling Insert TNKU120608ER-GR worldwide?
3G Electric supplies the OSG Triangle Milling Insert TNKU120608ER-GR to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this insert and other OSG cutting tools.
How to select the correct OSG triangle milling insert for your application?
Select the OSG triangle milling insert based on workpiece material, cutting conditions, and required surface finish. The TNKU120608ER-GR suits general-purpose milling in steel and cast iron. For harder materials or finishing, consult OSG's grade and geometry recommendations to match your operation.
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3G Electric supplies OSG triangle (t) indexable milling inserts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.













