Ultimate Arms Gear Gunsmith Armorer Cleaning 5-1/2" Inch Spring Loaded Automatic Center Pin Punch Tool with Brass Body & Hardened Steel Tip For Universal Shotgun Rifle Pistol Handgun Gun Spring Loaded Automatic Center Punch-Length: 5-1/2". Solid Brass Body. High Tense Spring in Body. Hardened Steel Tip. Punch Has a Knurled Finger Grip for the Best Texture in Field Working Conditions. Net Weight 1/4 lb.