The second one is a not connected pin

Speed: 7500RPM±10%

It offers one of the lowest coefficients of friction

der udviser egenskaber med god slagfasthed og duktilitet

nothing stronger than rubbing alcohol

Raise3D Hot End Silicon Cover (3pcs-set) Flashforge - 3D Printer The second one is a*Silicone cover is used to insulate the Hot End *3 silicone covers in a package Advantage: *Precise temperature control and stable performance *Faster start with less warm up time to reach the set temperature *Keep Hot End clean quick change and easy maintenance Features: Silicone Cover used to isolate the Hot End 3 Silicone Covers in package Benefits: Precise temperature management and stable performance Quicker start by less heat up time to reach