... UNION Specification:1/2'',3/8'',1/4'' CR-V Specification:1,name: professional high quality 1/2'',3/8'',1/4'' chorm ... drive socket 2, size: 1/2'',3/8'',1/4''6pt and 1/2'',3/8'',1/4'12pt 3,item ... 38mm 27mm1"38mm 30mm1-3/16"38mm 32mm1-1/4"38mm 1/4"DR. STANDARD SOCKETS SIZE/Metric/SAE ... 5/1625mm8mm11/3225mm9mm 3/825mm10mm13/3225mm11mm 7/1625mm12mm15/3225mm13mm 1/225mm14mm 9/1625mm 3/8"DR. STANDARD SOCKETS ...