I am missing the bushings to the Inertia Pen Kit (and have about 10 kits). Woodcraft no longer makes this kit. Does anyone have the bushings for the Inertia Pen Kit that they would be willing to sell?
This the Inertia Flip/Sylus kit?
Checking the PDF it's the same bushings as Penn State's Apollo Infinity - which also looks tough to find
The single top bushing of the Cameo should work as well, listed as 0.511 inches compared to the 0.512 for the Inertia. You'll have to get two sets of bushings though to get one for each side.But at least they are on clearance/sale at PSI