Picture of Leatherman Scalpel handle
The Leatherman multitool will undoubtedly go down in history next to the inclined plane, screw, fire, and Dremel as the most important milestones in mankind's use of tools.  I never go anywhere without it, and have used it often in the ER and the garage.  
But each of us probably does something day to day that we wish the leatherman had a tool for, or we find that we never use one thing or another. 
I don't think I used the Eyeglass screwdriver more than a couple of times, and ended up breaking it off.  One thing I always seem to be looking for is something fine and sharp, to remove a sliver, drain a nailbed, or whittle something.  A #11 scalpel blade works for most of those jobs.  I also use an 18 gauge needle for all but whittling, and in considering this mod I thought of some ways to put the 18 ga. in the eyeglass screwdriver blade.  I chose instead to modify a # 3 scalpel handle to fit the leatherman in place of the screwdriver blade.
I found a stainless #3 scalpel handle which is about the size of the leatherman blade.  A #3 handle will also hold a #15 blade, which is a small rounded blade.  There are a large number of specialty scalpel blades available, just be sure they have the the smaller slot that fits a #3 handle.
  With that in mind, I held my breathe and sent my Charge TTi to the OR.  (there were complications;-()
Obviously, this will void the warranty. You risk screwing up your leatherman. Which I did.  Sadness fer sure.  You could poke your eye out.  Wear Safety glasses, take the blade off the handle or tape the blade.
BTW,  my first instructible.  Your comments are appreciated.
skygod04516 months ago

LOVE IT!!!!!!! very well done. the best ive seen in a while. very funny.

3366carlos8 months ago


lrwelling (author) 3 years ago
Top to bottom, a #10 blade, #11, and #12.
2nd pic shows the #12 partially seated,
and 3rd frame fully seated.
The #10 does allow the multitool handle to close, the #12 does not.
trojan523 years ago
I must say, this is a really clever and usefull hack.
thoraxe3 years ago
The silver soldering may have messed up the temper of your scalpel, just saying.
tjesse thoraxe3 years ago
Read the instructable, then comment. Just saying.
Why would he solder with the blade on? Even if he did, its replaceable, that's the beauty of his idea.
lrwelling (author) 3 years ago
Sorry if it wasn't obvious. The scalpel blades are disposable, replaceable and interchangeable. The blade was off the handle when it was soldered.
The beauty is that I never have to sharpen this tool. If there is a different task, like whittling or ripping seams, a #12 blade can be used. I'm pretty sure a #15 blade would fit into the multitool handle when closed. A #12 probably would prevent the handle from closing, but could still be placed on the scalpel handle and used.
iPodGuy3 years ago
I'd be lost without my Leatherman. The #1 tool I go for and keep with me at all times.

This i'ble rocks! Thanks for the great idea, I'm going to try this.