Finally good 2

Subject replace a cordless drill the self-tightening chuck that self-greenhouse much.
After the purchase of another mandrel which turned out with no greater respect than my little viseuse drill and then put in a box a little trick that be useful someday.
This one is adapted perfectly and finally allows me to finally have my bits that do not slip .... little thing, a piece of string and tie you to the little key has your drill chuck because it is really small and if you lost, hassle to replace your drills. Good holes