120PCS 1/2"&3/8"&1/4" Dr SOCKET SET Marterial:Chrome-vanadium steel. Surface treatment:Honed ... Rigidity 120PCS 1/2"&3/8"&1/4" Dr SOCKET SET :Contents:10PCS-SPANNER: 9,10,11,12,13 ... -UNIVERSAL JOINT: 1/4"&3/8"&1/2"7PCS-BITS: T10,T15,T20,T25,T27,T30,T401PC-BLOW CASEDescription ... :Marterial:Chrome-vanadium steel.Surface treatment:Honed Nickel PlatedSockets and Bit Rigidity is HRC48-52°.Dual Color Handle in ...