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A rotary jack hammer, often referred to as a demolition hammer or simply a jack hammer, is a powerful hand-held percussion tool that finds extensive use in construction and demolition projects. This high-impact device, driven by either compressed air, electricity, or hydraulics, is designed to break through tough materials like concrete, masonry, and rock with its rapid, forceful pounding action.

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There are various types of rock drill shanks available, each tailored to suit specific drilling applications. For instance, the 'A-shank' is commonly used in handheld drills, while 'D-shanks' are more prevalent in larger, rig-mounted drills. The 'T-shank' is another variant, known for its versatility and compatibility with different drill bits, making it a popular choice in mining and construction projects.

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