Machine tools

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Across
  1. 4. Drills mounted on large machines
  2. 7. Drilling tools used to enlarge holes
  3. 9. To dig tunnel
  4. 13. The process of enlarging holes by means of single-point cutting tools
  5. 14. They are used to bore holes in the earth to obtain eater or oil
Down
  1. 1. The cutting tool moves parallel to the axis of rotation to produce a...
  2. 2. The basic tooling bits on a milling machine
  3. 3. One of the grinding operations
  4. 5. The process of cutting a hole by means of rotating drill
  5. 6. Shaping a piece of metal by bringing it into contact with a rotating wheel
  6. 8. It is usually held in a rotating spindle
  7. 10. They are called bits
  8. 11. It consists of machining a piece of metal by bringing it in contact with a rotating cutting tool
  9. 12. Machine tools which rotate the boring bar against a stationary workpiece