The OTC 8-pt Wheel Bearing Locknut Sockets with Tool Board, No. 9851, includes 15 8-pt sockets ranging in size from 2-3/8" up to 4-1/2" and three 6-lug tubular spanner wrenches: 2-5/8", 2-7/8", and 3-5/8". Each socket is made from high-strength steel and designed to only be used with 3/4" square-drive manual tools. The sockets ensure proper torque setting on wheel bearings when reinstalling locknuts, and they resist rounding out. All 18 sockets come organized on an OTC tool board with each size marked.