![Stainless Steel Test Kit for Differentiating 316/304 [Packaging Upgraded]](https://m.media-amazon.com/images/I/81tyzLzILKL._AC_SL3840_.jpg)






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🔍 Don’t get fooled—verify your stainless steel in a flash!
The MARSTEP Stainless Steel Test Kit offers a fast, reliable chemical test to distinguish 316 stainless steel from 304 and 201 grades. With over 100 tests per pack and a simple color-change method delivering results in 2 minutes, this compact kit is perfect for professionals needing quick, on-site verification of cutlery, pipes, wire, and castings.
| Customer Reviews | 3.5 out of 5 stars 20 Reviews |
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