SPANNERS
Double ended imperial sizes -5/16"-3/8", 7/16"-1/2",9/16"-5/8".11/16"-3/4"
Double ended sizes: 8 mm- 9mm, 10, 11mm , 12-13mm,14-15mm, 17-19mm
Longer, thinner and deeper than a standard socket
Imperial
Chrome Vanadium steel
Universal tooth design for use on 6 different types of bolts
Metric
Chrome Vanadium steel
Universal tooth design for use on 6 different types of bolts