Glaser Screw Chuck Large Base

An optional accessory to the Glaser Screw Chuck.  This gives two additional base diameters, simply by flipping which end goes onto the body of the chuck.  This gives  approximate base diameters of 4.5" and 5.5".   You must have the basis Glaser Chuck for this base to work, shown on the left of the base as a reference--it must be purchased separately.