Complete jig set has everything you need to properly bend and form a 1mm thick AK receiver flat to the correct angles using a 12-ton (or more) shop press. A must-have item for building new receivers for custom rifles.Heavy-duty bench tools were designed by the Kalashnikov experts at AK-Builder to build custom AK-pattern rifles using receiver flats and commercial parts to achieve professional results. Each jig and fixture is manufactured to correct dimensions to ensure properly-fitting finished components. Made from rugged, durable hardened steel or 6061 aluminum, so they will provide years of dependable service. Mfg: Ak Builder SPECS: Machined steel, black oxide finish. For use with 1mm thick receiver flats only. Illustrated instructions included.