Proto J111012L Double Box Wrench Alloy Steel, Chrome, 5 16 in_3 8 in Head Size, 9 in Overall Lg, Offset 23865 Blanket Color Silver Blanket Color Silver SAE J200 Case Type Plastic Box with Lid Chart Color Black Hardness Medium Hard Temp 16 lb Number of Points 12 Corrosion Resistant Yes Features Full Polish Wrenches Meet and Exceed Stringent Aerospace Specification AS4984A Which Requires Tools to Have A Thicker Nickel Chrome Coating for Greater Corrosion Resistance Box Ends Feature Torqueplus(TM) Design Tether Capable Standard Tool (Accessory Needed for Tethering) Wrench Material Alloy Steel Insulated No Ratcheting Configuration Non Ratcheting Wrench Style Double Box End Head Movement Fixed Offset 15 Degrees Non Magnetic No Head Offset Angle 15 Degrees Tether Style Not Tether Capable Handle Type Steel Head Thickness 9 32 in