In this socket wrench set mining FIXMAN 37 Pieces 1/4'' Socket Set, all the tools are manufactured from cold formed premium quality Chrome Vanadium alloy steel and heat treated for outstanding strength and corrosive resistance; providing the durability for a hard use.   Specification of Socket Wrench Set Mining Item No.: B2037M1 x Ratchet Handle: 1/4’’ Dr.2 x...