This is the Park Tool AWS-1 Y-Hex Wrench, with 4, 5 and 6mm hex ends. Park Tool introduced the bicycle industry to the 3-way Hex Wrench Set more than 20 years ago. The latest models are stronger, more comfortable and more convenient than ever. They fit perfectly in the palm of the hand and provide tremendous leverage.
- 4mm, 5mm, and 6mm hex wrenches in one tool!
- Wrenches made from industrial tool steel, through hardened and tempered for long life
- Chamfered tips for a perfect fit