I recently purchased a collet set for my milling machine and found this set to be a great addition to my toolbox. Through trial and error, I found that the collets are very accurate and secure providing consistent results when using my machine for precision work. The set includes a large range of sizes, making it versatile for different projects.The only con is that it can be a bit pricier compared to other collet sets, but the investment is worth it. Overall, I highly recommend this set for anyone looking to upgrade their workholding options..