used
Metric Sizes 7mm 8mm 9mm 10mm 11mm 12mm 18mm SAE Sizes 1/4" 5/16" 3/8" 7/16" 1/2" 9/16" 5/8" 3/4" 13/16" 1" 1-1/16" 1-3/16" 1-1/4"