The report outlines the step-by-step workflow described by Ostergaard for constructing a die:
While the search for a free PDF is common, weigh the value of a clean, full-resolution scan against a $25 used paperback. If you are serious about die making, the price of the book is less than the cost of scrapping one broken punch due to improper clearance.
is widely considered a "bible" for the trade. Originally published in conjunction with the National Tool, Die & Precision Machining Association, it bridges the gap between theory and the shop floor. What’s Inside?