Features Open end wrenches can come with different opening angles on each end for access to fasteners in tight spaces. They have a wrench head on each end and can access to fasteners from the top and side compared to box wrenches that can only access a fastener from the top. These double end wrenches are SAE (inch) size and can have a different size on each end so that each wrench can be used for two different size fasteners. Material / Alloy Steel Finish / Satin Head Size / 20 mm, 22 mm Overall Length / 9 31/64 in Opening Angle (Deg.) / 15 Degrees Head Thickness / 11/32 in Insulated / No Measurement Type / Metric Single End/Double End / Double End Opening Type / Rounded Handle Type / One Piece Nonsparking / No Non-Magnetic / No Tether Style / Tether Capable Ratcheting / No Corrosion Resistant / Yes Reversing / No Head Type / Standard Head Offset Angle / 15 Degrees Overall Width / 1 13/16 in Wrench Length Style / Standard Wrench Shape / Straight Handle Color / Silver Standards / ASME B107.100-2010 Weight / 0.58 lb