Hougen Manufacturing is a family owned business with their headquarters and manufacturing facility located in Swartz Creek Michigan. The late Dr. E Douglas Hougen who held over 400 worldwide patents including many for the Rotabroach Annular Cutter started the company. For over 60 years, Hougen has been the world leader in portable magnetic drills and annular cutters. Hougen proudly manufactures all of our magnetic drills, Rotabroach Cutters and most of our other products in Michigan. Looking for a company that truly encompasses “Made in the USA”, Hougen manufacturing is that company.