Industrial Barbells for Industrial PiercingIndustrial Barbells in 30mm, 34mm, 36mm, 38mm, 40mm, 44mm & 50mm for Industrial Piercing. Our Industrial barbells are 1.6mm / 14ga & are available in 316L Surcical Steel & Black Steel. The difference between an industrial Barbell & Standard Barbell is only down to the length. In all other respects they are the same. Industrial Barbells are available in up to 50mm length! For Standard length Barbells see Barbells. For Large Gauge see Large Barbells.