Short series stud extractor set with concentric roller action with reverse off action, allows access to awkward areas. 3/8″D sizes: 6 and 8mm. 1/2″D sizes: 10 and 12mm. Left and right handed thread. Repair kits available, please see Laser Part No. 0777 (6mm), 0778 (8mm), 0779 (10mm), 0780 (12mm). Manufactured from chrome vanadium and supplied in a blow mould case.