Clamping a Drill Bushing Bracket

Blue bracket, to which a drill bushing (in violet) is fixed, is clamped above yellow workpiece thanks to pink screw.
Turn the screw 90 deg. (for aligning it with the bracket slot) to release the bracket and flip the latter to free the space for removing and installing workpieces.
This design is numbered as 1036 in the book “Mechanical Fixtures Tooling”.

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