I have several brands of cutters that I like to use. SMT is at the top of my list, with Freud and Bosch at number 2 and 3. It seems that CMT makes a more durable carbide hole saw. While I've had good results and durability with Freud and Bosch tips, I tend to use CMT branded products a bit more. But you can see that I'm a pro fan of all three brands.