Answer :
Final answer:
A grinder is a common hand tool used primarily for crushing and grinding various materials. It has historical significance in food production and represents a key development in tool evolution. Thus, the statement is true.
Explanation:
Understanding the Grinder
A grinder is indeed a common hand tool used for various functions including crushing and grinding materials. In the context of tools, grinding machines can be used to process substances as diverse as corn and coffee beans.
Historically, hand grinding tools like mortars and pestles were among the earliest forms of grinding equipment used for food production. The hand grinder often features a handle that is turned to crush or grind items into smaller particles, while larger stationary forms exist for substantial quantities.
In conclusion, the function of a grinder aligns with its being classified as a common hand tool in both practical and historical contexts.
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