Hi Karen, if you can use the spirals God Bless You Girl. Them things have a mind of their own. I use most all hardwoods and spirals want to travel in the soft grain instead of following the lines. I mostly cut 5/8" hardwoods such as redoak,hickory and maple with a lot of 3/4" also. I use the FD-UR #7 for intricate work and I also use Olson PGT blades for the less intricate work. Steve