4pc 1/2 inDeep Thin Wall Impact Flip Socket Set SAEandMetric

CR-MO aloy steel for long life, Fully guaranteed, Heavy duty blow mold case. Sizes: 3/4 inch x 13/16 inch Flip socket, 7/8 inch x 15/16 inch Flip Socket, 19mm x 21mm Flip Impact Socket, and 3 inch Extension.