This unique tool does three things;
1) Re-shapes the PTFE inner liner allowing fittings to slide in with ease
2) Separates the steel braid from the PTFE liner.
3) Installs the ferrule and seats it square to the tubing end.
Engineered to work with both pressure (-6) and supply (-10) hoses. To switch the hose size, simply unscrew the retention cap and flip the insert. The precision machined 6061-t6 aluminum body and tool steel insert will give years of worry-free service.