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1Pc 1/2" Drive 21mm Extra Thin Wall Deep Impact Socket CR-V
K Tool International 49403 Wrench Extender Adapter 1/2 Drive 21mm Hex
CRAFTSMAN Shallow Socket Metric 1/2" Drive 21mm 12 Point cmmt44249 21 MM
New Proto 1/2" drive 21mm crowfoot wrench 5321MCF USA made
American Forge & Foundry Torque Limiting Socket - 1/2" Drive - 21mm - 150 Ft/Lbs
American Forge & Foundry Torque Limiting Socket - 1/2" Drive - 21mm - 80 Ft/Lbs