Phantom Jig 80% 1911 finishing jig for hand cutting steel and aluminium 1911 frame. Complete your 1911 80% frame WITHOUT the need for a milling machine! With a patent pending Phantom Jig, you will have everything needed to bring your 1911 80% steel or aluminium frame to completion and ready to accept parts. You now only need 3 pieces of equipment to completely finish your 1911 80% frame Vise; Drill Press or Drill; 1911 Phantom Jig (which utilizes 2 custom carbide cutters to aid the user in precisely cutting the slide rails and barrel seat).