DCCconcepts Gauges Home / Gauges, Tools & Fasteners / DCCconcepts Gauges / Back to Back – Sn3 or HOn-35 (Standard) 12.4mmBack to Back – Sn3 or HOn-35 (Standard) 12.4mmPrice: £8.29Tax FreeBrass Back-to-back gauge for SN30 or HOn3.5 or Narrow gauge (14mm track) (3’0″ gauge S Scale or 3’6″ gauge, HO Scale. set to NMRA standards)In stock QTY Back to Back - Sn3 or HOn-35 (Standard) 12.4mm quantity Add to basket SKU: DCG-BBSN Category: DCCconcepts GaugesRelated products Stainless Steel Scale Ruler and Handrail Jig Price: £12.46Tax Free In stock QTY Stainless Steel Scale Ruler and Handrail Jig quantity Add to basketPart:DCG-SR4 Back to Back P4 Scale 17.75mm Price: £8.29Tax Free In stock QTY Back to Back P4 Scale 17.75mm quantity Add to basketPart:DCG-BBP4 Roller Gauge (w/handle) OO/HO (Special Fine) 16.2mm FB (2 Pack) Price: £16.63Tax Free In stock QTY Roller Gauge (w/handle) OO/HO (Special Fine) 16.2mm FB (2 Pack) quantity Add to basketPart:DCG-RGFBSF75 Roller Gauge (w/handle) OO/HO (Standard) 16.5mm BH (2 Pack) Price: £16.63Tax Free In stock QTY Roller Gauge (w/handle) OO/HO (Standard) 16.5mm BH (2 Pack) quantity Add to basketPart:DCG-RGBHBFOO