I recently got a new 1/4 nut driver through a warranty claim with Snap On. The new driver (p/n NDD108AR) has a red sleeve over the metal shaft. The sleeve is very soft and thin, it almost feels like vinyl. It fits the shaft very loosely and doesn't cover the socket so I don't believe it's intended as insulation for electrical work. The Snap On website doesn't shed any light on what this sleeve is supposed to do. Any ideas?
You can see the sleeve in the pic on the website:
http://buy1.snapon.com/catalog/item.asp?item_ID=634201&group_ID=675111
You can see the sleeve in the pic on the website:
http://buy1.snapon.com/catalog/item.asp?item_ID=634201&group_ID=675111