EWK 4 Pc Stud Puller /Remover Wrench Metric MM Sockets Extractor Removal Tool W/Case 1. Size 6mm, 8mm, 10mm, 12mm 2. WarningUSE TORQUE RANGE LESS THAN. . 6mm : 15ft/lb (20Nm) / 8mm : 15ft/lb (20Nm). . 10mm : 25ft/lb (33Nm) / 12mm : 25ft/lb (33Nm) 3. Work with Screw without Head , Screw up , Pull Up