Woolf Aircraft Products, Inc.

We fabricate tubes for hundreds of customers, making thousands of different assemblies in any alloy including aluminum, carbon steel, stainless, inconel and titanium. Made to order contracts range from $100 to $500,000 each with over 500 contracts in production.


Woolf Aircraft Products has specialized in tube fabrications, tube bending and weldments since 1942. We are a small business with approximately 100 employees, located in a modern 94,000 square foot facility in Romulus, Michigan. We fabricate all types of metal tubing and components used for nearly any application. 


We are very strong in the commercial market as well as military and aircraft. Our specialty in thin wall, tight radius work has gained us a reputation for bending difficult configurations. Our size range through 8" as well as the ability to do smaller production runs enables us to fulfill most requirements. A qualified supplier base ensures deliveries of raw materials and specialized services.

PT Tech

Baker Industries

Baker Industries is an industry-leading provider of CNC machining, fabrication, and 3D printing for prototypes, tooling, flight hardware, and more. We work with the world's leaders in the aerospace, agriculture, architecture, automotive, construction, defense, and space industries, just to name a few. We are designers, engineers, machinists, and fabricators who are passionate about what we do - building the tools and components that make your products work. We're creative, sharp, and dedicated to figuring out how we can make every project better - more ergonomic, lighter, more precise, and faster.

Best Tool & Engineering Company, Inc.

Mayer Tool & Engineering, Inc.

Champagne Grinding & Manufacturing Co.

Thread-Craft Inc.

Thread-Craft, Inc. is a manufacturer of mechanical linear movement actuators such as ball screw assemblies, acme or lead screws, roller screws and precision spindles. Our machining expertise also involves special tool holding devices and precision machine details. We are a full-service repair facility, capable of evaluating and repairing or remanufacturing products to OEM specifications. In addition, we offer precision machining, grinding and thread grinding services. 


Lloyd E. Johnson and Ture A. Lindholm founded Thread-Craft, Inc. in the early 1950s. Originally employing three people, Thread-Craft, Inc. occupied a total of 1,000 square feet. The initial product line consisted of threaded plug and ring gages and a thread grinding service. Thread-Craft, Inc. was relocated in 1956 to a 3,000-square-foot facility in Warren, MI . In 1958 Thread-Craft, Inc. was incorporated. 


Early in the 1960s, the majority of work consisted of worms, multiple starts, repair and new manufacture of acme screws More... and nuts thread grinding, turning and milling, and ID/OD grinding. Jobs made complete to print began to make up a large percentage of Thread-Craft's work in the mid to late 1960s. Three thousand square feet were added to the facility in 1967 in order to compensate for Thread-Craft, Inc.'s rapid growth and expanding product line.


 In the 1970s, gages were removed from the product line and the focus became machine tool oriented. Lloyd E. Johnson bought Ture A. Lindholm's shares in 1979 and became the sole owner of Thread-Craft, Inc. The following year he rented a 3,000-square-foot manufacturing plant located next to the existing facility to accommodate newly acquired turning and milling equipment. Lloyd E. Johnson retired in 1984 and was succeeded by Dennis L. Johnson as president. Thread-Craft, Inc.'s vision and commitment to quality continued.


 During the 1980s, Thread-Craft, Inc. experienced continued growth due to the ability to provide superior quality machine tool components such as machine spindles, lead screws and nuts, fixtures, and a variety of other machine tool details quickly and accurately. Ball screw assemblies were added to the product line in 1988. Special machinery and equipment was purchased to manufacture the assemblies. By 1993 it was apparent that Thread-Craft, Inc. would need an additional 3,000-square-foot rental building to assemble and package the product.


 By 1994, Thread-Craft, Inc. could no longer continue to grow in its 12,000-square-foot facility. The process of planning a new facility had begun. It was determined that the office and manufacturing space would need to double, and production machines and material handling aids such as overhead cranes would be necessary. In designing the new manufacturing space, the company emphasized employee health and comfort, including climate control and a state of the art air purification system.

Hafendorfer Machine, Inc.

Hafendorfer Machine, Inc. (HMI) has been providing a variety of services since 1994. We continue to expand our list of value-added services, such as enclosure fabrication, high speed laser cutting in flat, tubular, and structured materials. Our employees are cross trained to provide quick results with around the clock operations. What sets us apart from other contract manufacturers is our diversity of services with a sense of urgency the world demands. 


Here at HMI we understand that we live in a need it yesterday environment. We understand our role to expand your capabilities and be the strategic partner you deserve. We also understand the value of intelligent design and achieve this through state-of-the-art machines that are both flexible and efficient. 


We believe that a decentralized management team leads to a more dynamic manufacturing environment, where supervisors are encouraged to use innovation and skill to get the job done. This is a sure fire, yet practical way to generate more More... ideas that save time and money, improving your bottom line.


 HMI stands behind its work 100% and if problems arise we will work carefully and quickly to ensure that the problem is not only remedied, but is never repeated. You can depend on us to construct a recovery plan that is air tight with revised and expanded quality checks, so that your needs are not compromised.

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