From the comfort of your home, order the Ridgid 13153 Key while supplies last online here at PlumbersStock. This key is a replacement part for the 122XL Copper Prep Machine. It measures 1/8"X3/16"X1/2" and is manufactured using durable, high-quality materials. Ridgid makes solutions that you can trust. Contact us with any questions about your project or this product.