Drill Instructor Hat Block – 61cm – 3D Print STL File

A drill-instructor / campaign-style hat block with a rounded crown, built for classic service and campaign hat shapes. A solid choice for milliners, costumers, and reenactment or theatre & film work. What you get: an instant-download STL file, ready to slice — no physical item is shipped. Suits felt or fabric hat forming. For personal and commercial use of the printed blocks. Resale or redistribution of the file itself is not permitted. At a 61cm head circumference, this specific size corresponds to a US/UK hat size of approximately 7 5/8 — handy if you're more used to sizing by hat size than by a tape measure in centimeters.

Not listed individually yet — visit our Etsy shop to ask about this item.