Holder for glassware with NS14, plus lock

The module corresponds to the module holder for glassware with NS14, but is also equipped with a rotatable locking ring, through which the glassware with standard cut NS14 is additionally protected against falling out.,Note on cut tolerances for NS14,Maximum outer diameter at the narrowest point of the taper: 17.2 mm (larger diameters are too wide for the mount and cannot be accommodated),Minimum outside diameter at the widest point of the taper: 18.0 mm (smaller diameters are too narrow for the mount and would fall out)