The Clipper tool is what you have been looking for to have an all in one tool for blade changes, opening cases and general maintenance.
You might ask - Why is this better than the screwdriver in my junk drawer? Good question! These bits are hardened and precisely machined unlike most junk screwdrivers. Also, since you get 4 sizes (2 phillips and 2 slotted) you will have the size you need to PREVENT you from stripping your blade/case screws using the wrong sized driver.
What you get:
Screwdriver with 6 in 1 Quick Change - 1/4 in., 5/16 in. Nutdrivers, #1, #2 Phillips ,1/4 in.,3/16 in. Slotted Bits