Zurn Stainless Steel Crimp RingTool. The QSECRT is a calibrated tool conforming to ASTMF2098 that applies the recommended force needed to make a leak-free crimp connection. The SSC tool is used with the stainless steel crimp rings, the Qick/Sert1 or QickSert CR fittings and ZurnPEX tubing to make a leak-free plumbing system.