A professional who sets up and operates drilling machine, equipped with vertically opposed hollow drills, that drill holes in glass and mirrors. Responsibilities include:

• Reads work ticket to determine size, quantity, and placement of holes to be drilled.
• Selects specified diamond-tipped hollow drill bits and installs bits in upper and lower spindles, using wrench.
• Turns knob to adjust depth of bore and rate of ascent and descent at which drill bits enter glass.
• Measures and clamps guide rail and stops on drill table according to specifications.
• Turns valve to start flow of coolant and presses button to start electric motor.
• Positions glass or mirror against stops on drill table.
• Depresses pedal or presses button to start drilling cycle that automatically clamps glass, drills hole, and releases glass.
• Repositions glass and repeats drilling procedure until specified number of holes have been drilled.
• Inspects holes for chips or cracks and verifies placement of holes according to specifications, using ruler.
• Places mirror or glass on pallet.