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Master Cylinders Master Cylinders squares, used on surface plates, provide one of the most reliable 90° reference standards available in the industry today. Work may be placed against the periphery and sighted for checking squareness, right angle by comparison method. Master cylindrical squares are also used for checking the squareness of the vertical axis to
Luthra Master Cylinders are high-precision cylindrical squares designed for use on surface plates to provide a reliable 90° reference standard in industrial metrology. They are used for checking squareness and right angles by comparison method when work is placed against the periphery, as well as for checking the squareness of the vertical axis to the horizontal axis of numerically controlled machining centres. Each square is packed in a finished wood case with a hinged cover and is supplied with a calibration certificate traceable to the National Physical Laboratory (NPL, Govt. Of India), New Delhi, in accordance with IS 6952:1990.
Note: Standard specifications adhere to IS 6952:1990 Grade 1. Other sizes are available on request.
