Keyless chuck designed to use with the overhead stirrers MINISTAR 20/40/80 digital and control. The keyless chuck allows you to quickly and easily remove the stirring elements without any tools. In addition, R 60.1 is also compatible with all overhead stirrers of the MICROSTAR series as well as with NANOSTAR 7.5 digital . Clamping range: 0.5 – 8 mm Keyless chuck designed to use with the overhead stirrers MINISTAR 20/40/80 digital and control. The keyless chuck allows you to quickly and easily remove the stirring elements without any tools. In addition, R 60.1 is also compatible with all overhead stirrers of the MICROSTAR series as well as with NANOSTAR 7.5 digital . Clamping range: 0.5 – 8 mm