Marshall Breaking Head 6″

The Marshall breaking head consists of upper and lower cylindrical segments having inside radius of 3″ for a 6″ sample. Mount the lower segment on a base with two perpendicular guide rods extending vertically from the base. One guide rod is larger than the other. A correspondingly larger guide sleeve in the upper segment ensures correct assembly. Guide sleeves in the upper segment bring the two sections together. Without appreciable binding or loose motion on the guide rods.