Park Tool introduced the bicycle world to the 3-way hex wrench set over 30 years ago. Our 3-way wrenches fit perfectly in the palm of the hand and provide excellent leverage, making them a favorite of countless shop mechanics worldwide.• 4mm, 5mm, and 6mm hex set
• Wrenches made from industrial tool steel, through hardened and tempered for long life
• Chamfered tips for a perfect fit