The ULTIMATE NCCER bundle for sheet metal. With this you get the most up to date NCCER publications dealing with all aspects of the sheet metal trade.Here are the (4) books you get:

Sheet Metal Level 1 Key content includes: Introduction to the Sheet Metal Trade, Tools of the Trade, Introduction to Sheet Metal Layout and Processes, Trade Math One, Fabrication One - Parallel Line Development, Installation of Ductwork, Installation of Air Distribution Accessories, Isulation, and Achitectural Sheet Metal.

Sheet Metal Level 2 Key content includes Trade Math Two, Plans and Specifications, Fabrication Line Two - Radial Line Development, Sheet Metal Duct Fabrication Standards, Air Properties and Distribution, Bend Allowances, Soldering, Basic Piping Practices, and Fiberglass Duct.

Sheet Metal Level 3 Key content includes Trade Math Three - Field Measuring and Fitting, Air Systems, Principles of Airflow, Louvers, Dampers, and Access Doors, Comprehensive Plan and Specification Reading, Fabrication Three - Triangulation and Advanced Architectural Sheet Metal.

Sheet Metal Level 4 Key content includes: Shop Production and Organization, Air Testing and Balancing, Introduction to Welding, Brazing and Cutting, Fume and Exhaust System Design, Fabrication Review, and Introductory Supervisory Skills.