Mini Knife

A handy little sliding knife that uses standard #11 craft knife blades. Small enough it could be used as a zipper pull, with a sturdy aluminum frame and incremental sliding mechanism.

To replace blade, simply unscrew the two T5 Torx drive screws, remove the small spring and ball bearing of the slide retention mechanism, and undo the one further T5 screw holding the blade between the thumb slider and its backing plate, then reverse the operation to reassemble.