The installation of hydraulic hose fittings should not be done with a hammer.
The delicate brass fittings at the end of a hydraulic hose can be easily crimped or not faithfully installed at the end of the hose, resulting in unwanted braking performance.
The needle turner is an easy to use tool, and allows easy and gentle installation of hose fittings.
The double-sided driver can be switched to work with either standard or rotary needles.