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The high-torque Right Angle Drive tool (RAD 10-20) was developed for EVA tasks on the Shuttle-Mir docking adapter but also proved useful for Hubble Space Telescope servicing and other missions, giving the astronauts access to obstructed bolts that could not be readily seen or reached. The drive tool attaches at the shaft end to either the pistol-grip power tool or the palm-wheel mechanical wrench from the standard EVA tool kit, and at the drive end it has a 3/8-inch square interface for a socket tool. It has a 2 to 1 torque multiplication for 80 ft. lbs. torque. The tool was first used on the STS-82 Space Shuttle mission in 1997 and became part of the EVA tool kit for subsequent missions.

This tool is an unflown duplicate. NASA transferred it to the Museum in 2001.

 Display Status

This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Object Details
Country of Origin United States of America Type EQUIPMENT-EVA Devices Manufacturer Wilson Aerospace LLC
 Dimensions 3-D (Tool): 25.4 x 5.4 x 3.2cm (10 x 2 1/8 x 1 1/4 in.)
3-D (Box): 29.8 x 6.4 x 8.3cm (11 3/4 x 2 1/2 x 3 1/4 in.)
 Materials Tool: Stainless steel, 24K gold plating, plastic, anodized aluminum (?)
Box: Wood, brass, foam
 Inventory Number A20010316000 Credit Line Gift of David and Caroline Wilson. Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
For more information, visit the Smithsonians Terms of Use.