Brickwork Crossword

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Across
  1. 4. A tool used to give a smooth concave finish.
  2. 7. A gap that can be 50mm or 100mm
Down
  1. 1. Used to keep the building warm.
  2. 2. A workable paste which hardens to bind building blocks/bricks
  3. 3. A type of building material used to build walls.
  4. 5. A hand tool used to apply mortar.
  5. 6. A tool used to check work is flat and ranged.