Precision in Every Cut, Accuracy in Every Test Meet the GSM Round Cutter + Digital GSM Tester – the ultimate combo for fast, flawless, and effortless GSM measurement of fabrics, paper, polymer sheets, rexine, and more. From cutting to calculation, it’s one perfect combination for professionals who demand nothing less than perfection. Complies with Major Standards: ISO 3801, ISO 7211-5, ASTM D3776, ASTM D1907