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The alignment telescope is a precision instrument for the alignment of objects on a reference line defined by the line of sight, or optical axis of the telescope. They have a wide range of focus from a few inches to infinity. They are widely used in alignment of larger work pieces, such as airplane, or missile parts, large turbines and other machinery and work pieces on a machine in relation to a cutter or grinding wheels and two-sided boring machines. These telescopes have an optical axis runs concentrically with respect to the tubular barrel to a very high degree if accuracy. The mounting of the alignment telescope is accurately tied to its optical axis and is especially designed for aligning bore holes, bearings and optical set-ups etc. They constructed in a sturdy, stainless steel that remain specifications even in rough working conditions. They basically used to establish and maintain principal optical reference. They are available in widest specifications and sizes.
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