Snap-on Tools USA NEW STYLE 12-Piece Assorted Drive Industrial Finish Adapter Extension Socket Lot Set w/ Magnetic Organizer Tray. Set Model # 1212GS. GLAS1F = 3/4″ Female to 1/2″ Male Adapter. IP80D = 1/2 Lock Pin Universal Impact Swivel. IP800 = 1/2 Retention Ball Impact Swivel. GLA12B = 1/2″ Male to 3/4″ Female Adapter. IPF80B = 3/8 Drive Universal Impact Swivel. GSAF1F = 1/2″ Female to 3/8″ Male Adapter. IPM80B = 1/4 Drive Lock Pin Universal Impact Swivel Adapter. IPM800B = 1/4 Drive Retention Ball Universal Impact Swivel Adapter. GFAT1E = 3/8″ Drive Female to 1/4″ Male Adapter. GTA3 = 1/4″ Female to 3/8″ Male Adapter.