DPI manufactures casing shoes/casing bits for your overburden drilling requirements. They are offered in blank, stagger tooth, “J” tooth and button designs.
"J" Stagger Tooth Design
About Drill Pipe, Inc
Drill Pipe Inc. (DPI) is based just west of Minneapolis, Minnesota in Winsted, Minnesota and is an international manufacturer of quality drill tools. With over 60 years of experience, Drill Pipe Inc. has an experienced and dedicated team that has leveraged their experience and expertise, and combined it with the latest manufacturing technology to produce the industry’s highest quality in-hole tools.