This advanced kit includes every standard and roll pin punch needed to build or work on an AR15. A perfectly balanced hammer along with our proprietary pin alignment tool makes starting tiny pins easy and accurate. All in a modern stand-up case. A remarkably frustration free experience even for sausage fingers. Product Features Gunsmithing hammer with rubberized, ergonomic grip 4 interchangeable hammer heads: rubber, brass, steel & nylon Pin Alignment Tool Standard pin punch 3/32", 1/8", 5/32" Roll pin punch 1/16", 5/64", 1/8" Staking punch 3/32" Bolt catch roll pin starter & roll pin punch Stand-up case Non-marring finishing punch Pin Alignment Tool holds even the smallest pins precisely