Gear PCD Testing Attachment is made using quality grade castings and is designed as such to give fast & accurate readings of PCD of a gear. The Testing Attachment is made in such a way that the main shaft moves on taper roller bearings resulting in smooth, accurate, less wear and fast working. The Testing Attachment is provided with measuring balls that can be changed for different mode. The Gear PCD Testing Attachment finds application as spare part in different industrial sectors.