The zero radius stainless steel sink was the first "square sink" to hit the market. They create an elegant modern look. Currently, in 2018, most of the publications in the kitchen and bathroom industry show variations of this square product.
This original zero radius unit has sharp square corners. They are made of a flat piece of steel. You can also pop over to this website to buy the best zero radius sinks.
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In addition to its modern appearance, the big advantage of this method is that the sink doesn't pull out like a conventional stainless steel sink, so the sixteen-caliber sink doesn't get thinner as it stretches.
Most traditional sinks have multiple sound pads to reduce noise. The more sound pads, the cheaper the sink, because the pads are needed to compensate for the thinner or cheaper steel.
The advantage is that the sharp edges are easy to clean, especially the bottom corner where the sides and bottom meet. Black spots may form in the corners.
To achieve a modern look and eliminate cleaning problems, sophisticated sink manufacturers have created sinks with a small corner radius, typically 3 to 20 inches. These rounded corners make the sink easy to clean and harden the sink to make it quieter.
Small radius sinks are made using the same process and have the problem of slow drainage and waterlogging when the sink is uneven.