Every roofer has been there. That stray nail that didn't go flush. That little piece of asphalt shingle that you didn't get in the cut. That small edge of flashing that you need to straighten out. No one wants to reach for a hammer to do the job, so you use whatever is in your hand. Most often a knife. This is why we designed the HAMMRHEAD roofing knife with a steel insert in the handle that can plow through that one-off hammer job with ease.