The Schick #5160/1 Round Chuck Key has been discontinued by Schick Dental. To remove and replace their chuck owners can instead use the L-Shaped Chuck Key (item no. 60819) with any of their Schick or Microstar® handpieces - including the C2-Profi and Microstar® V-40, as well as the C1-Master, C2-Master and C3-Master.
If you have any questions about the replacement parts you may need for your handpiece please feel free to contact our repair department and we will be happy to help insure you get the proper items. We can be reached at 800.729.8192.