Horn U308.0031.62 TN35 3-Edge Carbide Grooving Insert (2 pcs)

This listing is for two new Horn U308.0031.62 TN35 triple-edge carbide grooving inserts, manufactured by Paul Horn GmbH (ph Horn) in the USA, as confirmed by the original factory packaging dated 06/30/20. The part number decodes as follows: U308 designates Horn's System 308 three-edged grooving insert series with a round center bore, 0031 indicates a 3.1 mm groove width, 62 denotes the insert's inscribed circle or body diameter class, and TN35 is Horn's uncoated or TiN-coated (gold appearance visible in photos) carbide grade TN35 — a fine-grain tungsten carbide grade well-suited for grooving and parting of steel, stainless steel, and non-ferrous materials. The three cutting edges provide economy per edge and are fully indexable, fitting Horn System 308 toolholders designed for external and internal grooving, recessing, and undercut operations on CNC lathes. The bright gold PVD TiN coating is clearly visible on the cutting edges in the product photo, providing improved surface hardness and wear resistance compared to uncoated carbide.

Product Specifications