tooler

noun

1. A stonemason's chisel.
2. One who tools leather.
3. A criminal who defrauds a fruit machine and steals the money inside.
4. (UK, obsolete, slang)A pickpocket.

   “Pickpockets took to housebreaking and housebreakers joined gangs of street thieves; cracksmen's mistresses were often toolers and shoplifters.”

   “A tooler was the most elite of the pickpockets, a planner and plotter, a boy with brains, daring and courage. At any one time Ikey hoped for four toolers in the making and two fully blown and working at the top of their trade.”