Stahlwille Quickrelease Ratchet Insert Tool - Size 20 - 14X18 MM - 1/2 Drive 200 N7M

QuickRelease
The QuickRelease safety lock prevents unintentional loss of insert tools. These click securely into place, and are only released again at the push of a button for a quick tool change. In transducers: The QuickRelease safety lock helps you to quickly mount and change transducers. The transducers lock into the calibration system and only unlock again at the push of the buttons.