Proto JSBV1618 Box End Wrench Black Chrome, 1 2 in, 9 16 in Head Size, 7 in Overall Lg, Std, Reversing G1814 Battery Chemistry Lithium Ion Battery Chemistry Lithium Ion it is built to last and withstand heavy duty use The Proto JSBV1618 Box End Wrench is a versatile tool for any job 25 Degrees Insulated No Number of Geared Teeth 72 Wrench Shape Straight Single End Double End Double End Flexible Head No Head Movement Fixed Wrench Material Chrome Vanadium Steel Wrench Product Grouping Wrenches Box End Style Spline Offset 0 Degrees Tether Capable Standard Tool (Accessory Needed for Tethering) Wrench Item Ratcheting Box End Wrench Tether Style Not Tether Capable Non Magnetic No Handle Type Steel Head Offset Angle 0 Degrees Measurement Type SAE Ratcheting Yes Nonsparking No Grip Style Plain Handle Color Black Box End Type 12 Point Box End