Nut Driver
A 7/16 nut driver with a 1 1/2 inch diameter handle is used to install a 1/4 20 UNC bolt into a robotic arm.?
7/16 is the hex nut size…1/4 20 refer,s to the bolt diameter & thread,s per inch. ..1&1/2 inch is simply the handle size to accommodate your hand as you install the bolt into the robotic arm. ….so what is your question?
Visumatic Handheld Automatic Nut Driver Nut Runner & Feeder
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