Construction
The effective power of a geologist's hammer is mainly considered to be a reflection of its head weight and handle length. Head weight may range from 8 oz (225 g) or less on a small hammer—such as would generally be used for casual use or by children—to 24 oz (680 g) and greater. 16 oz (450 g) is often quoted as sufficient for all rock types, although metamorphic or igneous rocks often require heavier hammers for a more powerful blow.
The best geologist's hammers are forged from one piece of hardened steel, which renders them sturdy and long lasting. Alternatives such as tubular and wooden shafted hammers are more commonly used, in part due to their low cost. Such alternative handles sacrifice strength and make the hammer unsuitable for high strain activities like prying.
The form and weighting of the shaft defines the balance, which itself defines the ease, efficiency and comfort of use of the geologist's hammer.
Read more about this topic: Geologist's Hammer
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