E10 Star U-joint Star design allows access in difficult areas. Removes & installs hard to reach E10 fasteners. Services BMW Valve Cover Gaskets, Steering Shaft, Oil Filter Housing Gasket Replacement on BMW E90/E92 Engine: N52 Model: 325i & 328i. Also services Mercedes Benz Oil pan bolts, interior, engine, water pumps, power steering pumps and engine covers on S63 AMG. OAL: 34mm (1-11/32"). OD: 13.8mm. 1/4" square drive. Key Features: E10 Star U-joint Star design allows access in difficult areas Removes & installs hard to reach E10 fasteners Services BMW Valve Cover Gaskets, Steering Shaft, Oil Filter Housing Gasket Replacement on BMW E90/E92 Engine: N52 Model: 325i & 328i Also services Mercedes Benz Oil pan bolts, interior, engine, water pumps, power steering pumps and engine covers on S63 AMG OAL: 34mm (1-11/32"). OD: 13.8mm. 1/4" square drive.