NASA NTRS · 19770000314
Plaster core washout tool
Abstract
Tool powered by pressurized water or air removes water soluble plaster lining from Kevlar/epoxy duct. Rotating plastic cutterhead with sealed end fitting connects flexible shaft that allows tool to be used with curved ducts.
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Heisman, R. M., Keir, A. R., Teramura, K.. 1977-11-01. Plaster core washout tool. https://ntrs.nasa.gov/citations/19770000314
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