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This core stem drill bit is the type used with the Apollo Lunar Surface Drill (ALSD). During lunar operations, the threaded end of the bit was attached to the lower stem tube of the drill core prior to use. The ALSD was used on Apollo missions 15 through 17 to obtain a continuous soil column of up to 3 meters in length.

This object was transferred to the Smithsonian in 1974.

 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-Lunar Manufacturer Chicago Latrobe
 Dimensions 3-D: 6.7 × 2.5cm (2 5/8 × 1 in.)
 Materials Overall: Steel and tungsten carbide
 Inventory Number A19810917000 Credit Line Transferred from the NASA- Johnson Space Center Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
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