GearWrench 85317 17mm Reversible X-Beam Combination Ratcheting Wrench Ratcheting box end needs as little as 5 Degree to move fastener vs 30 Degree for standard box end wrenches Surface drive design reduces fastener rounding Flexible head on box end of wrench provides for multiple angles for better clearance in tight spaces Long pattern X-Beam design provides for greatly increased torque and significantly reduced hand fatigue High polish nickel chrome finish