A digital protractor that attaches directly to the flywheel nut, to easily measure port times on e.g. Raket 95.
Stop screw for mounting in crankcase (m5) and 14mm socket included.
For correct measurement of Raket 95, feeler gauge with article number 330414 are required.
To prevent the socket from slipping on the nut, you can advantageously put a piece of duct tape or similar over the nut before mounting the protractor's socket.
The tool can of course be used for other engines as well!
Socket connection 3/8"
Width of hole for stop screw 6mm
Total length of the tool is 150mm.
