Ridgid 94357 Carriage, 535A. Riding has a large line up of products built for the toughest conditions construction has to offer. They take pride in creating products with a high level of quality. Their products parts and accessories are designed to perform each and every use. When your tools and equipment need replacement parts, Ridgid also has a line of replacements parts to perform the way the original part was intended to. This Carriage is designed for a 535A Automatic Threading Machine only.