.019 Diameter - This is the "all purpose" diameter. It was designes for lampwork, Austrian crystal, Czech glass, metal, silver and pewter beads. It is also recommended when using a variety of materials in one design. You can string some of the smallest and some of the most abrasive beadsever produces on this wire.
.024 Diameter - It was designed for abrasive materials and designs that will meet excessive movement and rubbing such as beaded watchbands. It is excellent for multistranded designs and semi-precious stones.