Since 1923, ridgid has been the symbol of safety for dedicated professionals of the trade. Every tool that bears the Ridgid brand is engineered to the same high standards of quality, strength and endurance as the first heavy duty pipe wrench more than 80 years ago. Ridgid covers its products with a lifetime **against defects in materials or workmanship for the lifetime of the tool. These rigid replacement wheels for pipe cutters are precision machines made of high quality steel and are designed for long life and maximum cutting accuracy.