Motor Head and Handle, Zero-G Tool, Gemini


Display Status:

This object is not on display at the National Air and Space Museum. It is either on loan or in storage.

Collection Item Summary:

In the mid-1960s, the Martin Company in Baltimore, Maryland, developed a set of prototype space tools for use during zero-G EVA (spacewalking in weightlessness) for the Gemini program. The U.S. Air Force Systems Command's Aero Propulsion Laboratory at Wright-Patterson Air Force Base, Dayton, Ohio, financed the development for astronaut experiments. Working with the commercial tool maker Black & Decker, Martin developed a set of tools that neutralized the reaction forces normally created by applying force or rotation while working in zero gravity. Tools were to be tested during EVAs on Gemini VIII and XI in 1966, but for different reasons, the experiments were never done.

The Martin Company gave this tool head and handle to the Smithsonian in 1967 as part of a set of Gemini EVA prototype tools.

Collection Item Long Description:

Data Source

National Air and Space Museum

Restrictions & Rights

Do not reproduce without permission from the Smithsonian Institution, National Air and Space Museum

Credit Line

Gift of the Martin Company


Aluminum, Steel, Rubber, Paint, Cadmium


  • 3-D (Motor with cord coiled): 29.2 x 6 x 29.2cm, 2.5kg (11 1/2 x 2 3/8 x 11 1/2 in., 5 5/8lb.)
  • Other (Motor Cord): 166.4cm (65 1/2 in.)

Country of Origin

United States of America



Inventory Number