Underwater Tools And Equipment Practice Test

Which tool uses a 3/4 inch square drive?

IW-20 IW-12 Both Neither

Correct Answer:

IW-12

Explanation:

A 3/4 inch square drive is the size of the square stem that fits into sockets. This larger drive is used for higher-torque, heavy-duty work and accepts bigger sockets. The IW-12 is the tool configured to use 3/4 inch drive sockets, so it matches that size. The IW-20, by contrast, uses a different drive size, so it doesn’t fit 3/4 inch sockets. Therefore, the tool with the 3/4 inch drive is the IW-12.

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