Knocking hammer indoors, the sounds of the environment outside the window:
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Belt sander
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Drum rotation, Construction, cement loading
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Saws,, Home construction, hammers
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Concrete mixer
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Excavator digs a hole
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Electric machine grinder
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Tightening the nut, Manual ratchet, loosening
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Jamming, Bobcat loader approaching
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Fine Emery, Sandpaper
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Hammer and chisel, blows on concrete
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Hammering a brick wall
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Metal file
★★★★★