2/3 Jaw Gear Puller changes from 2-jaw internal to 3-jaw external in seconds Mac Tools introduces the new 2/3 Jaw Gear Puller No. PJ707 and PJ404. The gear puller comes in lengths of four and seven inches. A moveable top plate enables quick changing from a 2-jaw internal to a 3-jaw external puller by unscrewing the top plate. The locking mechanism latches jaws into place while reducing slippage and enabling better pulling control. Complete with a polished chrome and black oxide finish that resists corrosion, the puller is easy to operate and provides versatility and control.