CatalogToolingInspection Gauges 4″ Bus Go/No-Go Inspection Gauge PLKIG2000-64 Add to Quote Depth pin, marking window, Bracelet & Go/No-Go Cutouts Permanently marked, steel construction You may also like… 4″ Bus Head AssemblyDLT65PLHA0064 Marking PenDLT5301-000-01