Noses require a drill or punch to remove rivets, or you can simply grind them off. Use a ball peen hammer to replace rivets. This tip also features Oregon's patented Cradle Nose design which on the sprocket the weight and load is spread out over the much larger surface area between each tooth. The end result is a dramatic decrease in sprocket problems and nose-sprocket life that is 150% to 300% longer. Comes with replacemenet rivets
