550 South Third Street
Winsted, MN 55395


At DPI, we manufacture our subs utilizing 4140 Q&T Alloy Bar. Our heat treatment allows us to maintain a 28-32 RC hardness. We offer our subs with flats, lugs, float bores, fishing necks, dual thread, and in flanged configurations.

Pin x Box with FlatsPin x Pin Extended Length
Box x Box with FlatsPin x Box Crossover Sub
Pin x Pin Compact