We are working as an innovative & creative works, problem solving techniques in engineering industries since last 40 years, we are manufacturer of "CONCENTRIC" Hydraulic Expanding Collets, Mandrels & Jigs Fixture for Connecting Rod & Bushes industries, which can be used on CNC machines boring machine for Connecting Rod industries, By this collets you can achieve good consistency Twist & Parallelism of connecting rod relations. Please send your Inquires along with drawings at mahidharia@gmail.com .