The Park Tool CT5 Mini Brute Chain Tool for 5-12 speed chains is a small chain tool which goes anywhere and actually performs like a full size workshop tool. Incredibly handy to just throw in a pack this fantastic bike tool, weighs in at only 77 grams so won't weigh you down as you cycle. This Park Tool chain tool has been given a fine thread and slide-away T-handle which gives plenty of pressure at the pin head to move stubborn chain rivets easily. What's more, the special V shaped handle, and super strong replaceable pin make chain removal and installation a breeze. The Park Tool CT5 Mini Brute Chain Tool for 5-12 speed chains works on any derailleur chain and has a shelf for loosening tight links ... More info