RE: G.P. Hinge Cutter Blade Change
Those special screws can be defeated but it will take an old screwdriver you're ready to throw away and you're willing to modify with a file/grinder. Once removed, they can be replaced with standard screws if desired. Mine got this treatment when I replaced the ridiculously short cord with a 10' cord that would reach anywhere on my bench. Now if they'd make it variable speed, it would really be nice.