One of the easiest and fastest ways of getting your best parts or multi-part products is by putting them into comparison. For this, you may need to get your hands into some of those quotes which, preferably, are coming from as different stores or suppliers as possible.
Once you get enough quotes to compare, you can start looking for the specification of each product to help build your decision over which is the best item you need to buy. For instance, there are several Ring Gages you need to get for the sake of some maintenance. You may need to check some specifications like which is better to have some carbide over steel, or chrome over ceramic, and so on.
Then, never forget the most important part of your comparison: the prices. Remember that what you need to seek is not which quote gives you the lowest prices for your gages; rather, which one of those quotes is giving you the most reasonable price for every item. Reasonable price always gives you the best items for it relates to the very quality, materials, quantity and many other specifications of the very product. Cheapest price, on the other hand, often gives you nothing as it relates to, simply, none.