•The special designed set of twist sockets could especially work with nuts which could not be loosen because of rust or deformation.
•17mm, 19mm, 21mm. 1/2"DR Extension Driver.
•D1 (mm)     D2 (mm)     S (mm)     L (mm)     
     27               25               17            67        
     30.5            28               19            67       
     31.8            29.5            21            67       

•The special designed set of twist sockets could especially work with nuts which could not be loosen because of rust or deformation.
•17mm, 19mm, 21mm. 1/2"DR Extension Driver.
•D1 (mm)     D2 (mm)     S (mm)     L (mm)     
     27               25               17            67        
     30.5            28               19            67       
     31.8            29.5            21            67