Kennametal 3580869 UCDE500J5BRA KC643M 1/2in 5-Flute 0.015R Carbide End Mill

This is a new Kennametal HARVI™ series UCDE500J5BRA solid carbide end mill, part of the HARVI high-performance milling line, in grade KC643M — an AlTiN-based PVD coating optimized for dry and semi-dry machining of steels, stainless steels, and high-temperature alloys at elevated cutting speeds. The designation decodes as: UCDE = HARVI Ultra solid carbide end mill with corner radius, 500 = 0.500 in (1/2 in) cutting diameter, J = 1/2 in straight shank, 5 = 5 flutes, B = right-hand cut/right-hand helix, R = corner radius type, A = 0.015 in corner radius; the label further confirms 1/2 in diameter × 1-1/4 in length of cut × 3 in overall length with a 0.015 in corner radius. The 5-flute geometry with the unequal flute spacing/variable helix characteristic of the HARVI platform reduces chatter and improves surface finish in dynamic/trochoidal milling strategies, full-slot, and deep-pocket operations. Compatible with standard 1/2 in ER, hydraulic, Weldon, and shrink-fit toolholders; the Kennametal item number is 3580869, made in Israel per the packaging label.

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