kwb 052800 40Cr steel Granite drill bit 4-piece 5 mm, 6 mm, 8 mm, 10 mm Cylinder shank 1 Set

According to ISO 5468, diamond-ground carbide special cutting edge with high tungsten carbide content and homogeneous fine grain structure, 120° hohem angle, asymmetrically shaped drill spiral for optimum drilling dust transport, high contact pressure drill bit and a recommended speed of 800 - 1,000 rpm without impact, suitable for battery machines and cabled machines, green color, specialist for hard stones such as granite, gneiss, hohem Basalt, concrete, but can also be used for glass, ceramic or roof tiles and other hard materials.

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