Made of high-quality aluminum alloy , durable and wear-resistant, not easy to rust.
The screw thread is precisely made with high hardness, can precisely control the required progress.
Ball bearing design makes it more stable while using, labor-saving operation and will not harm your bicycle frame.
Used for installation and removal of bike headset cup and bottom bracket, accurately aligns and presses 1, 1-1/8, 1-1/4, and 1.5 headset cups, fit most of the headset and bottom bracket.