The geometry of the cross-bar and sliding parts of the Kukko 2-Arm Quick Adjusting Universal Pullers with Slender Arms has been optimized to ensure particularly easy movement of the extractor hooks along the cross-bar. But it also ensures a rock-solid hold once positioned on the bolts. With quick-adjust technology, a manual adjustment knurl allows rapid loosening and adjusting of the extractor hooks without using a wrench. These pullers feature self-lock technology: By turning the locking screw the hooks are centered and tensioned and therefore firmly grip the piece to be pulled off. This prevents the hooks moving or slipping off. Made in Germany.