THIS IS A MAC TOOLS 4 PIECE SOCKET ADAPTERS. THE INDIVIDUAL ITEM NUMBERS ARE A1624, A1612, A1216, AP128, ?. THE 1/4 - 3/8 IS SNAP-ON & REST ARE MAC. THE SIZES ARE 1/4 FEMALE TO 3/8 MALE; 3/8 FEMALE TO 1/4  MALE; 3/8 FEMALE TO 1/2 MALE; 1/2 FEMALE TO 3/8 MALE; 1/2 FEMALE TO 3/4 MALE. THEY ARE IN GOOD USED CONDITION. THE 1/4-3/8 HAS OWNERS MARKS & THE REST HAVE NO OWNERS MARKS. 136S3C12. PLEASE SEE OUR PHOTOS FOR MORE DETAILS. 

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