The Park Tool AWS-7 Hex/Torx 3-Way Wrench. Park Tool introduced the bicycle industry to the 3-way Hex Wrench Set over 20 years ago. This latest model is stronger, more comfortable, and more convenient than ever. It fits perfectly in the palm of the hand and provides tremendous leverage. Features: 4mm & 5mm hex wrenches, & T25 Torx in one tool! Wrenches made from industrial tool steel, through hardened and tempered for long life Chamfered tips for a perfect fit