The Mitsubishi Materials MWS00350XB is a new, solid carbide micro drill from the WSTAR Drill / MIRACLE series under the DIAEDGE brand, coated with VP15TF — Mitsubishi's proprietary TiAlN-based PVD "MIRACLE" coating — engineered for high-speed, long-life drilling in a wide range of work materials including carbon steels, alloy steels, stainless steels, and cast iron. The MPN decodes as follows: MWS = WSTAR Miracle solid carbide drill series; 00350 = 0.350 mm drill diameter; XB = extra-long flute / stub-shank variant with a 3.175 mm (1/8 in) straight shank, consistent with Mitsubishi's micro-drill packaging for this diameter range. VP15TF grade delivers a hard, oxidation-resistant TiAlN coating that supports dry or minimal-quantity lubrication (MQL) machining and resists heat buildup at the cutting edge, which is critical at sub-0.5 mm diameters. The lot code MV0177YAJG2A6 is a Mitsubishi production/traceability identifier; the tool is Made in Japan per the packaging label. At 0.35 mm diameter, this drill is suited for PCB micro-via drilling, precision watch and medical component applications, and fine-pitch hole-making in CNC machining centers or precision drill presses with appropriate high-speed spindles.