Designed to be compatiblewith single speed 6/7/8/9/10/11/12 speed chains,this versatile tool is a must have for cycling enthusiasts of most. Whether you're a professional cyclist or just enjoys relax rides,the Bike Chain Breaker Tool is essential for repairs and adjustments. The high-strength top pin is not easily damaged,detachable,and easy to replace.Various specifications of chains can be used. The Bike Chain Breaker Tool is perfect for quick and precise removal and installation of chain pins,making bike maintenance a easy. Made with tool steel,this bike chain splitter cutter is and for long term use.