Components of comparator stands can be purchased seperately. The indicator arms will accept most manufactures gages and are designed to fit on a 1.25" diameter column. The columns are 1.25" in diameter and have both ends threaded 1/2-13UNC. The arms can be either lug mount or stem mount, rigid or with a fine adjustment knob. The granite bases have a counterbored through hole to accept a 1/2" diameter bolt. All granite bases come with a Certificate of Accuracy, traceable to N.I.S.T..
The following chart lists the part numbers for the sub-assemblies.
