Job Description:

• 1) Grinds edges of watch-crystal blanks, using abrasive wheel: Places blank on die of specified size and clamps die and blank in chuck.

• 2) Starts grinding wheel and adjusts flow of water on wheel.

• 3) Holds blank against wheel and grinds it until die is stopped by guide.

• 4) Rotates blank and die until all edges are ground.