DXR 310 is our most powerful...
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Ideal for field work performed by professionals in geology and mining. It incorporates sixteen pages of geological information, including: grain size scales, soil classification, geological map symbols, rock classification diagrams, geological...
There are many granulometric scales in use, but the Udden-Wentworth scale (commonly known as the Wentworth scale) is the most widely used in geology.
• Marks on hard materials including hardened steel, ceramic and glass.
• Retractable safety tip, length 6 inches.
• Made of metal.
• With clip to attach to the pocket.
• Total length: 133.4 mm.