I recently purchased the CNC External Thread Hard Alloy Blade and was thoroughly impressed with its performance. The package came with 10Pcs 16ER AG60 Internal Hole Tooth Cutters,Thread Pick Heads, making it a great value for the price. What impressed me the most was the precision with which this thread cutter was able to work. I used it on both steel and stainless steel and it worked flawlessly. The 60-degree metric pitch was perfect for my needs, and the cutter was able to handle pitches from 0.3-3.0 with ease. The CNC Thread Cutter was easy to install and I was up and running in no time. The internal hole tooth cutters made it easy to get into tight spaces and the entire package was well-made and felt sturdy. Overall, I highly recommend the CNC Thread Cutter for anyone who needs precision work done quickly and efficiently. It's a must-have in any workshop! I rate this product 5 out of 5 stars.