Fastclip Installation Tool F41/G44/EG47 Cat No. 0039/047850 RB/BR/123 Suitable for all steel and concrete sleeper types. The installation tool has two functions, each achieved by simply re-positioning a moveable pin. With the pin passing through the rear hole of the claw, installation of a Pandrol Fastclip assembly in the ‘switched off’ position is carried out. When the pin is re-positioned to the front hole of the claw and the installation operation repeated, the assembly will be in the ‘switched on’ position.