The OTC 6575-1 is specifically designed to apply maximum force with minimal effort from an impact gun to also minimize service time. The 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 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.