Detect the integrated round pin of ruling

The utility model discloses a detect the integrated round pin of marking off is newly disclosed, including fork group, detection round pin and marking off round pin, the well upper portion of detecting the round pin is equipped with guide bush, said guide bush with said fork group is fixed, said detection round pin with guide bush sliding connection, the marking off round pin is provided guide bush's upper portion, said marking off round pin with guide bush rotatable coupling, said marking off round pin with fork group rotatable coupling, the palus portion at marking off round pin top is higher than said fork group top surface, it has the guide bar to detect round pin upper portion insert, it to supply the guide bar upwards to stretch out to be equipped with on the marking off round pin the marking off is sold outer and is returned to downwards guide way in the marking off round pin, said detection round pin with marking off round pin accessible said guide bar with said guide way both sides wall offsets, for fork group rotatable coupling. Detection round pin and marking off round pin close as an organic wholely, need not to look for again the hole site, can accomplish the detection and the marking off of hole site simultaneously, and operating time has been saved to the operation and using of being convenient for, has improved work efficiency.