Features These open end crowfoot wrench sets can access fasteners from the top and side and in tight spaces where a regular open-end wrench can’t reach. These wrenches come in SAE (inch) sizes. Material / Alloy Steel Finish / Chrome Drive Size / 3/8 in Head Size / 1/2 in, 11/16 in, 13/16 in, 3/4 in, 3/8 in, 5/8 in, 7/16 in, 7/8 in, 9/16 in Number of Tools / 9 Container Type / None Measurement Type / SAE Opening Type / Hex Nonsparking / No Non-Magnetic / No Insulated / No Corrosion Resistant / Yes Ratcheting / No Tether Style / Not Tether Capable Color / Silver Standards / ASME B107.21 Weight / 0.83 lb