The subject innovation is fastened to the bearing of the present invention relates to water vein detection rods rotate the testing device, particularly, the subject innovation can direct seeding jibong and the number of the bearing is embedded in the upper portion than the direct seeding jibong is rotated by sumaekpa, so that a length of elastic a first elastic member and the second elastic member, and the third the first and the elastic member is an elastic doedoe include rods, the first elastic member and the second elastic members fastened to the multi-step 3 the elastic members is provided with fastening a set of a through-structure ball and the coupling hole has operating magnet body is fastened fixed to the fixed vein detection rod and the wall is to be detachably installed on the bracket formed with a body having an engaging groove on one side and the bracket, the fixed shaft being interference fit to the coupling groove and the made of the inspection apparatus configured body fixed magnet is installed at an end of the connection portion and the connection portion of the antenna structure that is installed to be folded in multiple stages on the fixed shaft, proximate the operating magnet body to the fixed magnet body to measure the operation of the bearing vein the effect that can be determined whether defects detection rod, and it is effective to practice the process of detecting the water vein. Dowsing rod detection, rotation, inspection devices, telescopic rods, bearings