Sandvik 860.1-0680-024A0-PM 4234 6.8mm CoroDrill 860 Solid Carbide Drill

This is a new Sandvik Coromant CoroDrill 860 solid carbide drill, part number 860.1-0680-024A0-PM 4234, with a 6.8 mm cutting diameter and 21.5 mm flute length, as confirmed by the label. The PM 4234 grade is a PVD-coated submicron carbide grade optimized for steel and cast iron drilling, featuring Sandvik's Zertivo (ZCZCms) coating technology visible on the label as 'CZCms', which provides enhanced wear resistance and tool life in demanding applications. The 860 series features a parabolic flute design and a split-point geometry that enables self-centering, reduced thrust forces, and high hole accuracy without a pilot hole. With an 8 mm straight shank (Ø8 shank diameter as indicated by 'CZCms Ø8' on the label), this drill is compatible with standard ER collet chucks, hydraulic chucks, and shrink-fit holders accepting an 8 mm bore. Typical applications include through-hole and blind-hole drilling in carbon steel, alloy steel, and cast iron in ISO P and K material groups.

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