出典:Wiktionary
出典:『Wiktionary』 (2025/10/15 14:22 UTC 版)
出典:Wikipedia
出典:『Wikipedia』 (2011/08/01 18:48 UTC 版)
A hammer is a tool meant to deliver an impact to an object. The most common uses are for driving nails, fitting parts, forging metal and breaking up objects. Hammers are often designed for a specific purpose, and vary widely in their shape and structure. The usual features are a handle and a head, with most of the weight in the head. The basic design is hand-operated, but there are also many mechanically operated models for heavier uses, such as steam hammers.
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