The index is also designed to secure the precision grade is used for accurate indexing of the index table machine tools Until now, as for the device to the server, directly to the motor unit for dividing the index at an angle, or, in a set of three, and a constant back-using a circular coupling leche has a splitting device for use by which to Clem ping that is unsuitable for the weak, the cutting force required a great power, or backlash, yet structure with two or more due to the structure of the coupling dog to be moved up and down the exact split does not have much of a processed product using it The problem caused by falling, etc. did not perform precision machining. Therefore, the subject innovation which two discs to one set, and the backlash so that the device, high-precision value (no lifting) of the index-type device designed by 1 or less to the process who does not use a coupling of three minutes so far by having the advantage of the high accuracy of processing made possible by features of the device for fixing precisely divided and completely as possible to the index, a high precision of economical components which may have an effect that is designed to supply the industry.
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