This aligning reamer holder is a must-have tool for any industrial and scientific cutting application. As a result of using this product, I found that it greatly improved the precision and efficiency of my work. The holder securely holds the reamer in place, eliminating any slippage or wobbling that could result in inaccuracies. It is also very durable and has a smooth operating mechanism. The only downside is that it may require some additional setup time compared to other holders. Overall, I highly recommend this holder for any cutting tool professional.