• A handheld machine for drilling rock and breaking up pavement, operated by compressed air.
  • a hammer having a strong steel cutting blade, driven by compressed air in multiple rapid strokes, and used for cutting through pavement, concrete, or other hard substances.
  • A portable <xref>percussive</xref> power tool that combines a hammer and chisel used to <xref>drill</xref> or <xref>break</xref> hard <xref>matter</xref>, for instance <xref>rock</xref> or <xref>concrete</xref>.
  • To use a jackhammer.
  • a hammer driven by compressed air
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