recessed-head screwdriver
11Beam compass — A beam compass is a compass with a beam and sliding sockets or cursors for drawing and dividing circles larger than those made by a regular pair of compasses.[1] The instrument can be as a whole, or made on the spot with individual sockets… …
12Phillips screw® — /filˈips skroo/ noun A type of screw with a recessed cross in the head designed to receive the protuberant cross shaped tip of a Phillips screwdriver® ORIGIN: Phillips Screws, original US manufacturing company …
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