The Kukko 3-Arm Quick Adjusting Universal Pullers were diligently and cleverly designed to contain features such as the use of “ArmLock” technology, which guarantees maximum stability of the sliding arm and the claw. The geometry of the puller’s crossbar and sliding parts has been optimized (rounded) to ensure particularly easy movement of the extractor hooks along the crossbar, while offering a rock-solid hold once positioned on the bolts. The knurled-knob adjusters enable quick loosening, positioning and tightening of the puller arms by hand, requiring no wrench.