My G0634XP has carbide inserts that use a 15x15x2.5 square carbide insert but the fasteners are a strange T-Head Torx T25 10-32 x 1/2. The inserts have a flat countersunk surface. Grizzly charges $100 for a package of 10 inserts. I need 32 inserts which means 4 sets for at total of $400. Has anyone used a more conventional insert and replaced the T-head fasteners with flat head countersunk screws?