Relacionar Columnas Optical ToolsVersión en línea Tools found in an optical. por Liliana Mejia Rodriguez 1 Screw Extractor/Punch: Used to remove stuck screws or when the screw head is stripped or broken off. 2 Bionic Thumb: Helps to create temple bends or to brace for screw replacements. 3 Drill or Dremel Drill: Removes stuck screws or makes holes in lenses (rimless glasses). 4 Progressive Layout Chart 5 Hidden Circle Finding Instrument: Magnifier with light to enlarge the engraved symbols. 6 Distometer: Measures the distance between the apex of the cornea and the back of the lens. 7 Hot Fingers: Hold metal and heats it to be inserted in plastic/zyl. Can be used to replace hinges or add guard arms to plastic/zyl frames. 8 Frame Warmer: Salt pan: Heats zyl or plastic frames for adjustment. 9 Lensometer: Measures lens prescription. 10 Frame Warmer: Hot Air Blowers: Heats zyl or plastic frames for adjustment.