For measuring the pitch of the chain and sprocket, as well as the thickness of the drive link and groove width of the guide bar.
* Manufacturer's recommended retail price updated as of February 2019. The manufacturer's recommended retail prices are subject to change without notice.
The version(s) available in each country may differ from the above range and specifications; specific details may be subject to change without notice. Please ask your local STIHL Approved Dealer for further information.