The ARP Ring Square Tool is an essential accessory for any automotive enthusiast or professional mechanic. With a product code of 902-0107 and a brand name of ARP, you can trust in the quality and reliability of this tool. Designed for use on rings measuring between 3.976-4.212 inches (101-107mm), this tool ensures precise and accurate measurement every time.

ARP is known for its high level of craftsmanship and attention to detail, and this ring square tool is no exception. Made in Southern California, where ARP operates seven operational entities spanning over 200,000 square feet, you can trust that this tool is made with the highest standards in mind. Whether you are working on a Formula 1 race car or a classic street rod, this tool is a must-have for any engine and driveline work.

With ARP's extensive product line, which includes thousands of part numbers ranging from OEM replacements to specialty hardware for top racing applications, you can trust that this ring square tool is designed to meet the needs of even the most demanding projects. Don't settle for anything less than the best when it comes to your tools - choose the ARP Ring Square Tool for precision, reliability, and unparalleled performance.