LARGE CHUCK KEY CK12060 | eBaydiy Tools

Chuck key comes with four different sizes to fit most common larger applications in one handy tool
Strong magnet for attachment at the worksite or to a tool box
#5 is similar to Jacobs key K4, #6 is similar to Jacobs key K3, #7 is similar to Jacobs key K32, #8 is similar to Jacobs key K2