The Pipe Fitters Blue Book
Calculated Industries 4095 Pipe Trades Pro Advanced Pipe Layout and Design Math Calculator Tool for Pipefitters, Steamfitters, Sprinklerfitters and Welders | Built-in Pipe Data for 7 Materials
The Pipe Fabricators Blue Book
1-1/8" Two Hole Pins Set - Handy 6061 Aluminum Lightweight Construction 2 Hole Flange Alignment Pin with Anodized Black Oxide Finish That's Manufactured by SGS Certified Company (CNC Precision)
Williams WG-3 3-Inch Set Up Wedge
Ajax Tools 876 Banana Wedge 13/16" x 13/16" x 13/16" x 12"
The Pipe Fitter's and Pipe Welder's Handbook, Revised Edition
Pipe Fitter's Math Guide
IPT Pipe Trades Handbook