Berg offers N scale standards from Wilson. N scales can have a load between 15 kgf and 45 kgf and are used for harder steels as well. Please browse our categories to find the product that works best for you. If you have any questions about our hardness testers, please give us a call at 1-847-577-3980 or email us at firstname.lastname@example.org. Our experienced staff is there to help.