As an automotive enthusiast, i needed a reliable riveter that could properly set RIVETS without damaging the material .Based on my experience, this riveter mandrels tool is exactly what I was looking for. the mandrels are easy to change out and work flawlessly, ensuring precise rivet placement every time. The only downside is the initial cost, but the quality and durability far outweigh the price. Overall, I highly recommend these riveter mandrels for anyone in the automotive industry..See full review