OTC 6575-1 Hub Grappler Puller The new Hub Grappler Puller is specifically designed to apply maximum force with minimal effort from an impact gun to also minimize service time The new jaws are designed and sized to properly fit hub applications and can be quickly located on the puller bar without the use of fasteners The new 3/4 custom drive screw coupled with the special equalizer washer provides smooth operation while the proprietary heat treating extends its life 5-10 times longer than similar designs