Miwaukee accessory code number : 48221903Genuine Milwaukee accessories.Stores 4 extra blades.One handed blade opening. User can flip open the blade with one hand for easy activation.Integrated gut hook. Allows users to make cuts without exposing the blade.Tool free blade change. Less down time in the field for blade changes.Wire stripper. Eliminates the need to look for another tool in user's bag.Thin body design. Tool is easily stored in user's pocket.Belt clip for easy storage.