This countersink drill reamer is perfect for my woodworking projects. Based on my observations, it creates a smooth and clean countersink every time without any tearouts. The design and quality of the tool are also top-notch, making it durable and long-lasting. The only downside is that it may take some time to master the correct angle for proper chamfering..
After trying this Industrial and Scientific tool, my expectation was a little bit high. However, it did not work well on hardwoods. It failed to create neat countersinks and chamfers. The only good thing about this product is that it is lightweight.I could not recommend this to anyone in the field of woodworking or industrial drill bits in Cutting Tools..
Pros
Efficiently creates smooth, uniform chamfers on woodworking projects.
Cons
Requires extra caution and precision to prevent over-cutting and damaging the wood.
I really wanted to use them in a project I was working on. After receiving and unpacking, I realized that this is garbage! If you need them to create precise holes, forget it. Bits are poor quality metal. The dots just had to be bent back to a pair. And each of them is deformed. So if you want your work to be exactly 3mm or 4mm, these cheap bits won't do it. Spend extra money on a famous brand.