Established in 1943, O.Keller Tool Engineering Companyhas grown to become one of the largest and most experienced machine shops in the Midwest. With the most current and advanced design and manufacturing equipment, our highly skilled and accomplished personnel are proud to offer an assortment of diversified products which include the design and build of precision details, fixtures, gages, pallets and special machines. O.Keller Tool is committed to providing our customers with a quality product in a timely and cost effective manner. Contact us today to see how we can support your business.