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Rock Mechanics

The Rock Piks and Hardness Scale are used for preliminary rock identification. Fully polished, leather grip. Weight approx.: 650 g Fully polished, nylon vinyl grip. Weight approx.: 550 g
The Rock Piks and Hardness Scale are used for preliminary rock identification.
Fully polished, leather grip. Weight approx.: 650 g
Fully polished, nylon vinyl grip. Weight approx.: 550 g