multi- threaded dovetail transfer stage (1) of the present invention is the handle to the opposite ends , number having a screw rod 8 and the connecting portion (7) and , installed on each side of the fixed part (2) and the number or screw rod 7 of the first arm to freely rotate the support (9) and the second support ( 10) , having the handle (8) for rotating the screw rod number 7 is connected detachably with the number screw rod 7 via the connecting portion and the sliding part (3) is to move the fixed part (2) and is connected to the female screw cylinder first support ( 9) and is characterized in that it moved to when coming into contact with the second arm (10). ;
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