Fatmax, 15 OZ, Anti-Vibe, Shinglers Hatchet With Blade, Designed For Roofing Installers, Blade Edge Is For Splitting Wood Shakes/Shingles & Includes A Nail Notch For Removing Old Nails, Striking Face Is Designed To Set Roofing Nails, While The Dowel Provides The User With A Gauge To Set The Reveal Of Each Shingle, The Cutting Blade Attached To The Hatchet Is Used To Trim Roofing Felt & Asphalt Shingles.