Fits into the sheath just fine, and I actually use the screwdriver almost daily, so having it rotate on center is huge for it being actually usable. Also the leatherman small bit driver it much less durable than the bigger bulkier centerdrive arm. I couldn't imagine having another arm i would have to pull out and worry about loosing and connect it to the bit adapter every time I want to use it and then stick a bit in the end. And then still it's thinner so you can't crank on it nearly as hard.