Layout Maintenance Home / Tools, Materials & Glues / Layout Maintenance / DCC Concepts DCG-145 OO/HO Back to Back Brass Gauge OO/HO DCC Concepts DCG-145 OO/HO Back to Back Brass Gauge OO/HO (1) DCC Concepts DCG-145 OO/HO Back to Back Brass Gauge OO/HO (1) £9.79 £8.16 (ex. VAT) RRP: £9.95 Only 0 left in stock Sorry, this item is out of stock Add to your Wish List You will earn 9 points with this purchase Product Overview More Details Reviews Instructions Brass back-to-back gauge for Standard OO and HO ready to run, plus models built using BRSMB wheel standards OR running on pointwork built using OO-SF standards for common crossing and related gauging. Click here to watch a video showing how to use this gauge. Scale Compatibility: OO/HO Brand: DCC Concepts Product Code: DCDCG-BB145 Weight: 0.07kg Based on 1 review(s) Write an online review and share your thoughts with other shoppers! Joslin Murray - The OO Gauge Association sets the dimensions for Back to Back as follows:Finescale 14.8mm and Standard as 14.4mm (these are minimum) This gauge measures 14.5mm so it is a reasonable compromise. The unit is OK for coach bogies and freight wagons as it sits between the wheels and slots over the axle. It is not really suitable for steam locomotives and I feel that a flat plate type might be better. This comment does not apply if the wheels and axles have been removed from the chassis when access is possible but a lot of people only want to check that the measurement is close to correct after having problems with running. I have given it four stars as it is not suitable for all occasions, the item is well made though but if the full price had been paid I would have felt short changed but then all DCC Concepts products are overly expensive.