His position was reclassified in 1917 as a master mechanic.

It was a simple matter to a master mechanic.

Opinion by master mechanics was that they were the easiest engines to keep in repair.

"Among my many other accomplishments, I am a master mechanic."

I got to know several master mechanics, but about the most interesting fellow among them was the black- smith, Dowley.

Waldo was a better master mechanic than any man who worked in the factory.

"Anyway, we have a master mechanic in the house."

It proceeded according to numerous 'rules of thumb' developed by the master mechanic over the years.

To have the best chance of becoming a master mechanic, any young apprentice needs a mentor.

He had been a master mechanic, and had gotten himself into some kind of trouble.